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Full text of "Wastewater engineering and management plan for Boston harbor - eastern Massachusetts metropolitan area emma study, technical data volume 8 and 8a: urban stormwater management and appendix"

WASTEWATER ENGINEERING 
AND MANAGEMENT PLAN 

FOR 

STON HARBOR - EASTERN MASSACHUSETTS METROPOLITAN AREA 

EMMA STUDY 

TECHNICAL DATA VOL. 8A 
APPENDIX TO URBAN STORMWATER MANAGEMENT 




7 ' r ~ 






OCTOBER 1975 



WASTEWATER ENGINEERING 
AND MANAGEMENT PLAN 
FOR 
Boston Harbor - Eastern Massachusetts Metropolitan Area 

EMMA STUDY 

INDEX TO REPORT VOLUMES 



SUMMARY REPORT 

MAIN REPORT 

Technical Data Volumes 

1. Planning Criteria 

2. Engineering Criteria 

3. Industrial Process Wastewater Analysis and Regulation 
3A. Study of Certain Industrial Wastes 

3B. Study of Wastes from Large Industries 
h. Water Oriented Wastewater Utilization Concepts. 

5. Land Oriented Wastewater Utilization Concepts 

6. Formulation of Wastewater Utilization Plan 

7. Combined Sewer Overflow Regulation 

8. Urban Stormwater Management 

8A. Appendix to Urban Stormwater Management 

9. MDC Interceptor and Pumping Station Analysis and 
Improvements 

10. Deer Island Wastewater Treatment Plant Analysis and 
Improvements 

11. Nut Island Wastewater Treatment Plant Analysis and 
Improvements 

12. Financing and Management 

13. Impact Analysis and Evaluation 
13A. Biological Impact Analysis 
13B. Socio-economic Impact Analysis 
13C. Hygienic Impact Analysis 

13D. Visual, Cultural and Design Impact Analysis 
lU. Public Involvement 

15. Recommended Plan and Implementation Program 

16. Agency Reviews 



PREFACE 



The Stormwater Management Summary data presented 
in this appendix is arranged in alphabetical order both 
by river basin or drainage area, and by community within 
each area. All data pertains to the design year 2000. 

Urban Drainage Area denotes the total urban area 
of the community that is to be utilized for residential, 
commercial, and industrial purposes by the year 2000. 
It also includes open urban land. 

Total Storm Runoff Volume is the total volume of 
stormwater runoff at the point of treatment in million 
gallons. 

Total Stormwater Pollutants are the total pounds of 
pollutants transported by the storm runoff before treat- 
ment. Data is presented for Settleable Solids, Suspended 
Solids, and 5-day Biochemical Oxygen Demand (BOD). 

Stormwater Treatment provides information regard- 
ing the type of treatment to be employed, the volume of 
stormwater to be treated in million gallons, and the 
percent of stormwater that receives treatment in rela- 
tion to the total stormwater runoff volume. Treatment 
is indicated as follows: 

NT = No treatment is employed 

SP = Stormwater is to be stored and pumped 

to existing waste treatment facilities. 

SMD = Stormwater is to be stored and subseqeuntly 
treated by microstraining and disinfection. 

MD = Stormwater is to be treated by high rate 
microstraining and disinfection. 



Pollutant Removals indicates the pounds of Settle- 
able Solids, Suspended Solids, and BOD that are removed 
by the treatment indicated. 

Pollutants Discharged indicates the pounds of 
Settleable Solids, Suspended Solids, and BOD not removed 
by treatment which will be discharged to the receiving 
body. 

Average Pollutant Concentrations Before Treatment 
indicates the average concentrations of Settleable Solids , 
Suspended Solids and BOD that would be present in the 
Stormwater Runoff if the pollutants were uniformly con- 
centrated throughout the entire Stormwater Runoff volume. 

Average Pollutant Concentrations After Treatment 
indicates the average concentrations of Settleable Solids, 
Suspended Solids , and BOD that would be present in the 
entire Stormwater Runoff Volume after treatment. 

Total Capital Cost is the total cost of installing 
treatment facilities excluding land costs. 

Annual & M Cost is the annual cost of operating 
and maintaining the treatment facility. 

Suspended Solids + BOD5 Before Treatment is the 

sum of the two pollutants in pounds before treatment. 
The pounds of pollutants removed likewise refers to the 
sum of the two parameters. Percent removed indicates 
removal on a combined basis. 

Capital Cost/% Removal gives a measure of the effi- 
ciency of capital spending in achieving a unit of treat- 
ment efficiency. 

Treatment Cost (C/1000 gal) represents the capital- 
ized treatment cost for each 1000 gallons of stormwater 
treated. 



TABLE OF CONTENTS 

Page 

PREFACE 

APPENDIX 

STORMWATER MANAGEMENT SUMMARY 

ASSABET RIVER 1-2 

Acton 1 

Berlin 2 

Bolton 3 

Boxborough 4 

Boylston 5 

Carlisle 6 

Clinton 7 

Concord 8 

Grafton 9 

Harvard 10 

Hudson 11 

Littleton 12 

Marlborough 13 

Maynard 14 

Northborough 15 

Shrewsbury 16 

Stow 17 

Sudbury 18 

Westborough 19 

Westford 20 

BEVERLY HARBOR 21-27 

Beverly 21 

Danvers 22 

Lynn 23 

Lynnf ield 2 4 

Peabody 2 5 

Salem 26 

Wenham 2 7 



TABLE OF CONTENTS (Cont.) 

Page 

BLACKSTONE RIVER 2 8-33 

Bellingham 28 

Franklin 29 

Hopkinton 30 

Milford 31 

Westborough 32 

Wrentham 33 

CHARLES RIVER 34-64 

Arlington 34 

Ashland 35 

Bellingham 3 6 

Belmont 37 

Dedham 38 

Dover 39 

Franklin 40 

Holliston 41 

Hopedale 42 

Hopkinton 43 

Lexington 44 

Lincoln 45 

Medfield 46 

Medway 47 

Mendon 48 

Milford 49 

Millis 50 

Natick 51 

Needham 52 

Newton 53 

Norfolk 54 

Sherborn 55 

Somerville 56 

Walpole 57 

Waltham 58 

Watertown 59 

Wayland 60 

Wellesley 61 

Weston 62 

Westwood 63 

Wrentham 64 



TABLE OF CONTENTS (Cont.) 

Page 

CHELSEA RIVER 65-66 

Everett 65 

Revere 66 

CONCORD RIVER 67-75 

Bedford 67 

Billerica 68 

Carlisle 69 

Chelmsford 70 

Concord 71 

Lincoln 

Lowell 73 

Tewksbury 74 

Westford 75 

ESSEX BAY 76-79 

Beverly 76 

Essex 77 

Gloucester 78 

Hamilton 79 

Ipswich 80 

Wenham 81 

GLOUCESTER HARBOR-ANNISQUAM RIVER 82-83 

Gloucester 82 

Rockport 83 

IPSWICH RIVER 84-101 

Andover 84 

Beverly 85 

Billerica 86 

Boxf ord 87 

Burlington 88 

Danvers 89 

Hamilton 90 

Ipswich 91 

Lynnf ield i 92 



TABLE OF CONTENTS (Cont.) 

Page 

IPSWICH RIVER (Cont. ) 84-101 

Middleton 93 

North Andover 94 

North Reading 95 

Peabody 96 

Reading 97 

Tewksbury 98 

Topsfield 99 

Wenham 100 

Wilmington 101 

LOCAL NO. 1 CAPE ANN 102-103 

Gloucester 102 

Rockport 103 

LOCAL NO. 2 MANCHESTER HARBOR AREA 104-107 

Beverly 104 

Gloucester 105 

Manchester 106 

Wenham 107 

LOCAL NO. 3 MARBLEHEAD HARBOR-LYNN HARBOR AREA ... 108-111 

Lynn 108 

Marblehead 109 

Nahant 110 

Swampscott Ill 

LOCAL NO. 4 BOSTON HARBOR 112-113 

Revere 112 

Winthrop 113 

LOCAL NO. 6 QUINCY BAY 114-115 

Milton 114 

Quincy 115 



TABLE OF CONTENTS (Cont.) 

Page 

LOCAL NO. 7 HINGHAM HARBOR-HULL BAY 116-121 

Cohasset 116 

Hingham 117 

Hull 118 

Norwell 119 

Rockland 12 

Weymouth 121 

LOCAL NO. 8 COHASSET HARBOR-SCITUATE HARBOR 122-124 

Cohasset 122 

Norwell 123 

Scituate 124 

LOCAL NO. 9 GREEN HARBOR-DUXBURY BAY 12 5-127 

Duxbury 12 5 

Marshf ield 126 

Pembroke 127 

MERRIMACK RIVER 12 8-131 

Boxf ord 128 

Chelmsford 12 9 

Tewksbury 130 

Westford 131 

MYSTIC RIVER 132-147 

Arlington 132 

Belmont 133 

Burlington 134 

Everett 135 

Lexington 136 

Maiden 137 

Medf ord 138 

Melrose 139 

Reading 140 

Somerville 141 

Stoneham 142 

Wakefield 143 

Watertown 144 

Wilmington 145 

Winchester 146 

Woburn 147 



TABLE OF CONTENTS (Cont.) 

Page 

NEPONSET RIVER 148-160 

Canton 148 

Dedham 149 

Dover 150 

Foxborough 151 

Medfield 152 

Milton 153 

Norwood 154 

Quincy 155 

Randolph 156 

Sharon 157 

Stoughton 158 

Walpole 159 

Westwood 160 

NORTH RIVER 161-163 

Abington 161 

Duxbury 162 

Hanover 163 

Hanson * 164 

Marshfield 165 

Norwell 166 

Pembroke 167 

Rockland 168 

Scituate 169 

Weymouth 170 

PARKER RIVER 171-172 

Boxford 171 

Ipswich 172 

ROWLEY RIVER 173 

Ipswich 173 

SALEM HARBOR 174-177 

Lynn 174 

Marblehead 175 

Salem 176 

Swampscott 177 



TABLE OF CONTENTS (Cont.) 

Page 

SAUGUS RIVER 17 8-18 6 

Everett 178 

Lynn 179 

Lynnf ield 180 

Maiden 181 

Melrose 182 

Reading 183 

Revere 184 

Saugus 185 

Wakefield 186 

SHAWSHEEN RIVER 187-198 

Andover 187 

Bedford 188 

Billerica 189 

Burlington 190 

Concord 191 

Lawrence 192 

Lexington 193 

Lincoln 194 

North Andover 195 

Tewksbury 196 

Wilmington 197 

Woburn 198 

SOUTH RIVER 199-2 01 

Duxbury 199 

Marshfield 200 

Scituate 2 01 

STONY BROOK 2 02-2 06 

Boxborough 202 

Chelmsford 203 

Harvard 204 

Littleton 205 

Westford 206 



TABLE OF CONTENTS (Cont.) 

Page 

SUDBURY RIVER 207-221 

Ashland 207 

Concord 208 

Framingham 209 

Hopkinton 210 

Hudson 211 

Lincoln 212 

Marlborough 213 

Natick 214 

Northborough 215 

Sherborn 216 

Southborough 217 

Sudbury 218 

Wayland 219 

Westborough 220 

Weston 221 

TAUNTON RIVER 222-228 

Avon 222 

Holbrook 223 

Pembroke 224 

Rockland 225 

Sharon 226 

Stoughton 227 

Wrentham 228 

WEYMOUTH BACK RIVER 229-234 

Abington 229 

Braintree 230 

Hingham 231 

Holbrook 232 

Rockland 233 

Weymouth 234 



TABLE OF CONTENTS (Cont.) 

Page 

WEYMOUTH FORE RIVER 23 5-2 44 

Avon 235 

Braintree 236 

Brockton 237 

Canton 238 

Holbrook 239 

Milton 240 

Quincy 241 

Randolph 242 

Stoughton 243 

Weymouth 244 



STORMWATER MANAGEMENT SUMMARY 
ASS ABET RIVER BASIN 



TOWN ACTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 6674 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2 54.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 3477 
SUSP. SOLIDS, LBS. 40832 
BOD 5 6000 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 174.3 174.3 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 3303.2 3303.2 

SUSP. SOLIDS, LBS. 36748.8 26540.8 

BOD5, LBS. 5100 2400 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 173.8 173.8 

SUSP. SOLIDS, LBS. 4083.2 14291.2 

BOD5, LBS. 900 3600 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.6 1.6 

SUSP. SOLIDS mg/1 19.2 19.2 

BOD5 mg/1 2.8 2.8 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.08 0.08 

SUSP. SOLIDS mg/1 1.9 6.7 

BOD5 mg/1 0.4 1.7 

TOTAL CAPITAL COST ($) 3,250,000 6,000,000 

ANNUAL O&M COST ($) 130,000 410,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 46832 46832 

REMOVED, LBS. 41848.8 28 940.8 

% REMOVED 8 9.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 36,400 97,100 

TREATMENT COST (C/1000 gals) 8.3 19.8 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN 



BERLIN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1610 

45.5 

390 

4645 

683 



SP 


SMD 


31.2 


31.2 


68.6 


68.6 


370.6 


370.6 


4180.5 


3019.2 


580.5 


273.2 


19.4 


19.4 


464.5 


1625.8 


102.5 


409.8 


1.0 


1.0 


12.2 


12.2 


1.8 


1.8 


0.05 


0.05 


1.2 


4.3 


0.3 


1.1 


850,000 


2,250,000 


23,000 


80,000 


5328 


5328 


4761 


3292.4 


89.4 


61.8 



9,500 



36,400 



TREATMENT COST (C/1000 gals) 



11.0 



30.0 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN 



BOLTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
1341 

41.0 

597 
7140 
1051 



SP 


SMD 


28.1 


28.1 


68.5 


68.5 


567.2 


567.2 


6426 


4641 


893.4 


420.4 


29.8 


29.8 


714 


2499 


157.6 


630.6 


1.7 


1.7 


20.9 


20.9 


3.1 


3.1 


0.09 


0.09 


2.1 


7.3 


0.5 


1.8 


760,000 


2,150,000 


21,000 


70,000 


8191 


8191 


7319.4 


5061.4 


89.4 


61.8 


8,500 


34,800 


11.3 


31.5 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN 



BOXBOROUGH 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 696 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 19.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 202 

SUSP. SOLIDS, LBS. 2407 

BOD 5 354 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



SP 


SMD 


13.3 


13.3 


68.9 


68.9 


191.9 


191.9 


2166.3 


1564.5 


300.9 


141.6 


10.1 


10.1 


240.7 


842.5 


53.1 


212.4 


1.3 


1.3 


15.0 


15.0 


2.2 


2.2 


0.06 


0.06 


1.5 


5.2 


0.3 


1.3 


480,000 


1,500,000 


10,000 


35,000 


2761 


2761 


2467.2 


1706.1 


89.4 


61.8 


5,400 


24,300 


13.6 


44.6 



STORMWATER MANAGEMENT SUMMARY 
ASS ABET RIVER BASIN 



TOWN 



BOYLSTON 



URBAN DRAINAGE AGEA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/100 gals) 



2000 
291 

6.4 

48 

574 

84 



NT 


SP 


SMD 


- 


4.4 


4.4 


— 


68.8 


68.8 


— 


45.6 


45.6 


- 


516.6 


373.1 


— 


71.4 


33.6 


48 


2.4 


2.4 


574 


57.4 


200.9 


84 


12.6 


50.4 


0.9 


0.9 


0.9 


10.8 


10.8 


10.8 


1.6 


1.6 


1.6 


0.9 


0.04 


0.0 


10.8 


1.1 


3.8 


1.6 


0.2 


0.9 


— 


200,000 


900,000 


M 


5,000 


10,000 


658 


658 


658 


- 


588.0 


406.7 


- 


89.4 


61.8 


- 


2,200 


14,600 


mm 


16.5 


71.0 



STORMWATER MANAGEMENT SUMMARY 
ASS ABET RIVER BASIN 



TOWN 



CARLISLE 



URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 1309 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 34.1 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 252 

SUSP. SOLIDS, LBS. 3028 

BOD5 445 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (0/1000 gals) 



SP 


SMD 


23.3 


23*3 


68.3 


68.3 


239.4 


239.4 


2725.2 


1968.2 


378.2 


178 


12.6 


12.6 


302.8 


1059.8 


66.8 


267 


0.9 


0.9 


10.6 


10.6 


1.6 


1.6 


0.04 


0.04 


1.1 


3.7 


0.2 


0.9 


700,000 


1,950,000 


18,000 


55,000 


3473 


3473 


3103.4 


2146.2 


89.4 


61.8 


7,800 


31,600 


11.9 


34.0 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN CLINTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 225 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 5.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 4 

SUSP. SOLIDS, LBS. 487 

BOD 5 72 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/10 00 gals) 



NT 


SP 


SMD 


- 


3.7 


3.7 


*- 


67.3 


67.3 


— 


38 


38 


- 


438.3 


316.6 


■— 


61.2 


28.8 


40 


2 


2 


487 


48.7 


170.4 


72 


10.8 


43.2 


0.9 


0.9 


0.9 


10.6 


10.6 


10.6 


1.6 


1.6 


1.6 


0.9 


0.04 


0.04 


10.6 


1.1 


3.7 


1.6 


0.2 


0.9 


- 


190,000 


800,000 




4,000 


10,000 


559 


559 


559 


- 


499.5 


345.4 


— 


89.4 


61.8 


- 


2,100 


12,900 


_ 


20.4 


76.0 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN 



CONCORD 



URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES ]658 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 52.4 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 781 
SUSP. SOLIDS, LBS. 9320 
BOD 5 1371 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP 

VOLUME TREAT., MG 35.9 

% TREATED 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 742 

SUSP. SOLIDS, LBS. 8388 

BOD5, LBS. 1165.4 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 39 

SUSP. SOLIDS, LBS. 932 

BOD5, LBS. 205.6 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.8 

SUSP. SOLIDS mg/1 21.3 

BOD5 mg/1 3.1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.09 

SUSP. SOLIDS mg/1 2.1 

BOD5 mg/1 0.5 

TOTAL CAPITAL COST ($) 92 5,0 00 

ANNUAL O&M COST ($) 2 6,0 00 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 10691 

REMOVED, LBS. 9553.4 

% REMOVED 8 9.4 

CAPITAL COSTS/% REMOVAL ($) 10,3 00 



SMD 

35.9 

68.5 

742 

6058 
548.4 

39 

3262 

822.6 



1.8 

21.3 

3.1 

0.09 

7.5 

1.9 



2,350,000 
85,000 



10691 

6606.4 

61.8 

38,000 



TREATMENT COST (C/10 gals) 



10.8 



29.0 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN GRAFTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 178 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 5.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 57 

SUSP. SOLIDS, LBS. 681 

BOD 5 100 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, L.BS . 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) - 2100 

TREATMENT COST (C/1000 gals) " 2 0.4 



NT 


SP 


- 


3.8 


— 


69.1 


- 


54.2 


- 


612.9 


— 


85 


51 


2.8 


681 


68.1 


100 


15 


1.2 


1.2 


14.8 


14.8 


2.2 


2.2 


1.2 


0.06 


14.8 


1.5 


2.2 


0.3 


- 


190,000 


^ 


4,000 


781 


781 


- 


697.9 


- 


89.4 



10 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN HARVARD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 218 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 36 

SUSP. SOLIDS, LBS. 430 

BOD 5 63 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST K/1000 gals) 



NT 


SP 


SMD 


- 


3.3 


3.3 


— 


76.7 


76.7 


— 


34.2 


34.2 


- 


387 


279.5 


— 


53.6 


25.2 


36 


1.8 


1.8 


430 


43 


150.5 


63 


9.4 


37.8 


1.0 


1.0 


1.0 


12.0 


12.0 


12.0 


1.8 


1.8 


1.8 


1.0 


0.05 


0.05 


12.0 


1.2 


4.2 


1.8 


0.3 


1.1 


— 


190,000 


750,000 


— 


4,000 


9,000 


493 


493 


493 


- 


440.6 


304.7 


- 


89.4 


61.8 


- 


2,100 


12,100 


mm 


22.2 


79.5 



11 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN HUDSON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2 970 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 87.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1074 
SUSP. SOLIDS, LBS. 12788 
BOD 5 1880 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 60.2 60.2 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 1020.3 1020.3 

SUSP. SOLIDS, LBS. 11509.2 8312.2 

BOD5, LBS. 1598 752 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 53.7 53.7 

SUSP. SOLIDS, LBS. 1278.8 4475.8 

BOD5, LBS. 282 1128 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.5 1.5 

SUSP. SOLIDS mg/1 17.5 17.5 

BOD5 mg/1 2.6 2.6 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.07 0.07 

SUSP. SOLIDS mg/1 1.7 6.1 

BOD5 mg/1 0.4 1.5 

TOTAL CAPITAL COST ($) 1,350,000 3,125,000 

ANNUAL O&M COST ($) 45,000 140,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 14668 14668 

REMOVED, LBS. 13107.2 9064.2 

% REMOVED 8 9.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 15,10 50,600 

TREATMENT COST (C/1U00 gals) 9.6 25.0 76.0 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



12 



TOWN 



LITTLETON 



2000 
1234 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 35 «° 

TOTAL STORMWATER POLLUTANTS 

287 



SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



3412 
502 



SP 


SMD 


24.0 


24.0 


68.6 


68.6 


272.6 


272.6 


3070.8 


2217.8 


426.7 


200.8 


14.4 


14.4 


341.2 


1194.2 


75.3 


301.2 


1.0 


1.0 


11.7 


11.7 


1.7 


1.7 


0.05 


0.05 


1.2 


4.1 


0.3 


1.0 


700,000 


1,950,000 


18,000 


55,000 


3914 


3914 


3497.5 


2418.6 


89.4 


61.8 



7,800 



31,600 



TREATMENT COST K/IOOO gals) 



11.8 



33.8 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



13 



TOWN MARLBOROUGH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1575 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 52.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1081 

SUSP. SOLIDS, LBS. 12821 

BOD 5 1885 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/10 gals) 



SP 


SMD 


36.1 


36.1 


68.6 


68.6 


1027 


1027 


11538.9 


8333.6 


1602.2 


754 


54 


54 


1282.1 


4487.4 


282.8 


1131 


2.5 


2.5 


29.2 


29.2 


4.3 


4.3 


0.1 


0.1 


2.9 


10.2 


0.6 


2.6 


925,000 


2,350,000 


26,000 


85,000 


14706 


14706 


13141.1 


9087.6 


89.4 


61.8 


10,300 


38,000 


10.8 


33.9 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



14 



TOWN 



MAYNARD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1302 

42.7 

630 
7483 
1100 



SP 


SMD 


29.2 


29.2 


68.4 


68.4 


598.5 


598.5 


6734.7 


4864 


935 


440 


31.5 


31.5 


748.3 


2619 


165 


660 


1.8 


1.8 


21.0 


21.0 


3.1 


3.1 


0.09 


0.09 


2.1 


7.4 


0.5 


1.9 


800,000 2, 


,200,000 


22,000 


75,000 


8583 


8583 


7669.7 


5304 


89.4 


61.8 



9,000 



35,600 



TREATMENT COST (C/1000 gals) 



11.2 



31.2 



15 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN NORTHBOROUGH 

URBAN DRAINAGE AREA 

YEAR 200 

ACRES 2606 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 8 3.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1324 

SUSP. SOLIDS, LBS. 15762 

BOD 5 2318 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/10 00 gals) 



SP 


SMD 


57.3 


57.3 


68.5 


68.5 


1257.8 


1257.8 


14185.8 


10245.3 


1970.3 


927.2 


66.2 


66.2 


1576.2 


5516.7 


347.7 


1390.8 


1.9 


1.9 


22.6 


22.6 


3.3 


3.3 


0.09 


0.09 


2.3 


7.9 


0.5 


2.0 


1,200,000 


3,050,000 


43,000 


135,000 


18080 


18080 


16156.1 


11172.5 


89.4 


61.6 


13,400 


49,400 


9.7 


25.2 



STORMWATER MANAGEMENT SUMMARY 
ASS ABET RIVER BASIN 



16 



TOWN 



SHREWSBURY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
1764 

50.8 

643 
7694 
1131 



SP 
34.9 
68.7 

610.8 

6924.6 

961.4 

32.2 
769.4 
169.6 



1.5 

18.2 

2.7 

0.08 

1.8 

0.4 

925,000 
26,000 



8825 
7886 
89.4 

10,300 
10.8 



SMD 
34.9 
68.7 

610.8 

5001.1 

452.4 

32.2 

2692.9 

678.6 



1.5 

18.2 

2.7 

0.08 

6.4 

1.6 



2,350,000 
85,000 



8825 

5453.5 

61.8 

38,000 
29.0 



17 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



TOWN STOW 

URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 1816 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4 9.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



403 






4818 






708 








SP 


SMD 




33.6 


33.6 




68.6 


68.6 




382.8 


382.8 




4336.2 


3131.7 




601.8 


283.2 




20.2 


20.2 




481.8 


1686.3 


rs 


106.2 


424.8 




1.0 


1.0 




11.8 


11.8 




1.7 


1.7 




0.05 


0.05 




1.2 


4.1 




0.3 


1.0 




875,000 


25,000 




2,250,000 


80,000 




5526 


5526 




4938 


3414.9 




89.4 


61.8 




9,800 


36,400 




10.8 


29.2 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



18 



TOWN 



SUDBURY 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 415 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 10.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 77 

SUSP. SOLIDS, LBS. 922 

BOD 5 136 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



NT 


SP 


SMD 


- 


7.4 


7.4 


— 


68.5 


68.5 


- 


73.2 


69.3 


- 


829.8 


599.3 


— 


115.6 


54.4 


77 


3.8 


7.7 


922 


92.2 


322.7 


136 


20.4 


81.6 


0.9 


0.9 


0.9 


10.3 


10.3 


10.3 


1.5 


1.5 


1.5 


0.9 


0.04 


0.1 


10.3 


1.0 


3.6 


1.5 


0.2 


0.9 


- 


260,000 1, 


,100,000 


■■ 


5,000 


15,000 


1058 


1058 


1058 


- 


945.4 


653.7 


— 


89.4 


61.8 


- 


2,900 


17,800 


— 


15.0 


53.3 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



19 



TOWN 



WESTBOROUGH 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1249 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 49.4 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


839 






SUSP. SOLIDS, LBS. 


9901 






BOD 5 


1456 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




33.8 


33.8 


% TREATED 




68.4 


68.4 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




797 


797 


SUSP. SOLIDS, LBS. 




8910.9 


6435.6 


BOD5, LBS. 




1237.6 


582.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




42 


42 


SUSP. SOLIDS, LBS. 




990.1 


3465.4 


BOD5, LBS. 




218.4 


873.6 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




2.0 


2.0 


SUSP. SOLIDS mg/1 




24.0 


24.0 


BOD5 mg/1 




3.5 


3.5 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.4 


8.4 


BOD5 mg/1 




0.5 


2.1 


TOTAL CAPITAL COST ($) 




875,000 


2,250,000 


ANNUAL O&M COST ($) 




25,000 


80,000 


SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, LBS. 




11357 


11357 


REMOVED, LBS. 




10148.5 


7018 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 



9,800 



36,400 



TREATMENT COST (C/1000 gals) 



10.8 



29.2 



STORMWATER MANAGEMENT SUMMARY 
ASSABET RIVER BASIN 



20 



TOWN 



WESTFORD 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 41 3 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 9.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 115 

SUSP. SOLIDS, LBS. 1383 

BOD 5 203 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



NT 


SP 


SMD 


- 


6.7 


6.7 


— 


68.4 


68.4 


— 


109.2 


109.2 


- 


1244.7 


899 


— 


172.5 


81.2 


115 


5.8 


5.8 


1383 


13803 


484 


203 


30.5 


121.8 


1.4 


1.4 


1.4 


16.9 


16.9 


16.9 


2.5 


2.5 


2.5 


1.4 


0.07 


0.07 


16.9 


1.7 


5.9 


2.5 


0.4 


1.5 


- 


250,000 1, 


050,000 


- 


5,000 


14,000 



1586 1586 1586 

1417.2 980.2 

89.4 61.8 



2,800 



17,000 



TREATMENT COST (<:/10 00 gals 



15.2 



55.7 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



21 



TOWN 



BEVERLY 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 3 669 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 120.2 

TOTAL STORMWATER POLLUTANTS 

1707 



20297 
2984 



SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 



SP 
82.4 
68.6 

1621.6 

18267.3 

2536.4 

85.4 



2029 
447 



1 

20 

3 



0.8 
2.0 
0.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,745,000 
62,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 2 3,281 

REMOVED, LBS. 20,803.7 

% REMOVED 8 9.4 

CAPITAL COSTS/ % REMOVAL ($) 19,50 



TREATMENT COST (C/1000 gals) 9.0 



SMD 
82.4 
68.6 

1621.6 

13193 

1193.6 

85.4 

7104 

1790.4 



1.7 

20.2 

3.0 

0.8 
7.1 
1.8 

3,750,000 
195,000 



23,281 

14386.6 

61.8 

60,700 
23.1 



MD 
82.4 
68.6 

1536.3 

9133.6 

596.8 

170.7 

11163.4 

2387.2 



1.7 

20.2 

3.0 

0.2 

11.1 

2.4 

12,000,000 
600,000 



23,281 

9730.4 

41.8 

287,000 



73.8 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



22 



TOWN 



DAN VERS 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 



2000 
4323 

142.6 



TOTAL STORMWATER POLLUTANTS 



2329 

27723 

4077 



SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/10 00 gals) 



SP 
97.5 
68.5 

2212.5 

24950.7 

3465.5 

116.5 

2772.3 

611.5 



2.0 

23.9 

3.5 



1,950,000 
72,000 



31800 

28416.2 

89.4 

21,800 



8.8 



SMD 
97.5 
68.5 

2212.5 

18020 

1630.8 

116.5 

9703 

2446.2 



2.0 

23.9 

3.5 

0.1 
8.2 
2.1 

4,125,000 
230,000 



31800 

19650.8 

61.8 

66,700 
22.2 



MD 
97.5 
68.5 

2096.1 

12475.4 

815.4 

232.9 

15247.6 

3591.6 



2.0 

23.9 

3.5 

0.2 

12.8 

3.0 

14,000,000 
700,000 



31800 

13290.8 

41.8 

335,000 
73.5 



23 

STORMWATER MANAGEMENT SUMMARY 

BEVERLY HARBOR 



TOWN LYNN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 44 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 1.0 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


10 




SUSP. SOLIDS, LBS. 


119 




BOD 5 


17 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




N 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




10 


SUSP. SOLIDS, LBS. 




119 


BOD5, LBS. 




17 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




14.3 


BOD5 mg/1 




2.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




14.3 


BOD5 mg/1 




2.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 136 

REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/10 00 gals) 



24 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



TOWN LYNNFIELD 






URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


46 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.1 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


6 




SUSP. SOLIDS, LBS. 


75 




BOD5 


11 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




N 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




6 


SUSP. SOLIDS, LBS. 




75 


BOD5, LBS. 




11 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




0.7 


SUSP. SOLIDS mg/1 




8.2 


BOD5 mg/1 




1.2 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




0.7 


SUSP. SOLIDS mg/1 




8.2 


BOD5 mg/1 




1.2 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 8 6 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



25 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



TOWN 



PEABODY 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 4 660 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 171.7 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


3457 






SUSP. SOLIDS, LBS. 


41005 






BOD5 


6028 






STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




117.8 


117.8 


117.8 


% TREATED 




68.6 


68.6 


68.6 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




3284.2 


3284.2 


3111.3 


SUSP. SOLIDS, LBS. 




36904.5 


26653.3 


18452.2 


BOD5, LBS. 




5123.8 


2411.2 


1205.6 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




172.8 


172.8 


345.7 


SUSP. SOLIDS, LBS. 




4100.5 


14351.7 


22552.8 


BOD5, LBS. 




904.2 


3616.8 


4822.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




2.5 


2.5 


2.5 


SUSP. SOLIDS mg/1 




29.6 


29.6 


29.6 


BOD5 mg/1 




4.2 


4.2 


4.2 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.1 


0.1 


0.2 


SUSP. SOLIDS mg/1 




2.9 


10.0 


15.7 


BOD5 mg/1 




0.6 


2.5 


3.4 


TOTAL CAPITAL COST ($) 


2 


,325,000 


4,675,000 


17,000,000 


ANNUAL O&M COST ($) 




87,000 


275,000 


850,000 


SUSP. SOLIDS + BOD5 










BEFORE TREATMENT, LBS. 




47033 


47033 


47033 


REMOVED, LBS. 




42028.3 


29064.5 


19657.8 


% REMOVED 




89.4 


61.8 


41.8 


CAPITAL COSTS/% REMOVAL ($) 




26,000 


75,600 


407,000 



TREATMENT COST (C/1000 gals) 



8.5 



21.3 



73.1 



26 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



TOWN SALEM 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 8 55 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 28.7 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 651 
SUSP. SOLIDS, LBS. 7758 
BOD 5 1141 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 19.7 19.7 

% TREATED 68.6 68.6 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 618.5 618.5 

SUSP. SOLIDS, LBS. 6982.2 5042.7 

BOD5, LBS. 969.8 456.4 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 32.5 32.5 

SUSP. SOLIDS, LBS. 775.8 2715.3 

BOD5, LBS. 171.2 684.6 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 2.7 2.7 

SUSP. SOLIDS mg/1 32.4 32.4 

BOD5 mg/1 4.8 4.8 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.1 0.1 

SUSP. SOLIDS ma/1 3.2 11.3 

BOD5 mg/1 0.7 2.9 

TOTAL CAPITAL COST ($) 625,000 1,800,000 

ANNUAL O&M COST ($) 15,000 45,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 

REMOVED, LBS. 

% REMOVED 89.4 61.8 



8899 8899 
7952 5499.1 



CAPITAL COSTS/% REMOVAL ($) 6,700 29,100 



TREATMENT COST (C/1000 gals) 



12.4 36.7 



27 



STORMWATER MANAGEMENT SUMMARY 
BEVERLY HARBOR 



TOWN WENHAM 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 12 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 0.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 2 

SUSP. SOLIDS, LBS. 19 
BOD 5 3 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 2 

SUSP. SOLIDS, LBS. 19 

BOD5, LBS. 3 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.2 

SUSP. SOLIDS mg/1 11.4 

BOD5 mg/1 1.8 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1.2 

SUSP. SOLIDS mg/1 11.4 

BOD5 mg/1 1.8 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS f BOD5 

BEFORE TREATMENT, LBS. 21 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



28 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



TOWN BELLINGHAM 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1510 






TOTAL STORM "UJNOFF VOL. 








MIL, GAL. 


50.0 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


706 






SUSP. SOLIDS, LBS. 


8364 






BOD 5 


1230 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




34.3 


34.3 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




670.7 


670.7 


SUSP. SOLIDS, LBS. 




7527.6 


5436.6 


BOD5, LBS. 




1045.5 


492 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




35.3 


35.3 


SUSP. SOLIDS, LBS. 




836.4 


2927.4 


BOD5, LBS. 




184.5 


738 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




20.1 


20.1 


BOD5 mg/1 




2.9 


2.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




2.0 


7.0 


BOD5 mg/1 




0.4 


1.8 



TOTAL CAPITAL COST ($) 875,000 2,250,000 

ANNUAL O&M COST ($) 25,000 80,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


9594 


9594 


REMOVED, LBS. 




8573.1 


5928.6 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 9,80 36,400 

TREATMENT COST (C/1000 gals) 10 • 8 29 ' 2 



29 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



NT 



TOWN FRANKLIN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 93 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2.1 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 24 

SUSP. SOLIDS, LBS. 292 

BOD 5 43 

STORMWATER TREATMENT 
TREAT. DESCRIP. 
VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 24 

SUSP. SOLIDS, LBS. 29 * 

BOD5, LBS. 43 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1 - 4 

SUSP. SOLIDS mg/1 16 • 7 

BOD5 mg/1 2 - 5 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1 - 4 

SUSP. SOLIDS mg/1 1 ^* 7 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



2.5 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/10 gals) 



335 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



30 



TOWN 



HOPKINTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
378 

9.6 

96 

1154 
170 



NT 


SP 


SMD 


- 


6.6 


6.6 


- 


68.8 


68.8 


_ 


91.2 


91.2 


- 


1038.6 


750.1 


- 


144.5 


68 


96 


4.8 


4.8 


1154 


115.4 


403.9 


170 


25.5 


102 


1.2 


1.2 


1.2 


14.4 


14.4 


14.4 


2.1 


2.1 


2.1 


1.2 


0.06 


0.06 


14.4 


1.4 




2.1 


0.3 


1.3 



1324 



250,000 1,050,000 
5,000 14,000 



1324 




1183.1 


818.1 


89.4 


61.8 


2800 


17,000 


15.2 


56.5 



31 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



TOWN MILFORD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 116 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3 -l 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 31 

SUSP. SOLIDS, LBS. 369 

BOD 5 54 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT ., MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 31 

SUSP. SOLIDS, LBS. 369 

BOD5, LBS. 54 

AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 \'\ 

SUSP. SOLIDS mg/1 14# ? 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/100 gals) 



2.1 



1.2 



SUSP. SOLIDS mg/1 14 ■ 3 

BOD5 mg/1 2 * 1 



423 



32 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



TOWN WESTBOROUGH 






URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


12 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.2 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


2 




SUSP. SOLIDS, LBS. 


30 




BOD5 


4 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




2 


SUSP. SOLIDS, LBS. 




30 


BOD5, LBS. 




4 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




18.0 


BOD5 mg/1 




2.4 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




18.0 


BOD5 mg/1 




2.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/10 00 gals) 



34 



33 



STORMWATER MANAGEMENT SUMMARY 
BLACKSTONE RIVER BASIN 



TOWN WRENTHAM 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


364 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


11.9 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


168 






SUSP. SOLIDS, LBS. 


1995 






BOD5 


293 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




8.2 


8.2 


% TREATED 




68.9 


68.9 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




159.6 


159.6 


SUSP. SOLIDS, LBS. 




1795.5 


1296.7 


BOD5, LBS. 




249 


117.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




8.4 


8.8 


SUSP. SOLIDS, LBS. 




199.5 


698.3 


BOD5, LBS. 




44 


175.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




20.1 


20.1 


BOD5 mg/1 




3.0 


3.0 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




2.0 


7.0 


BOD5 mg/1 




0.4 


1.8 



TOTAL CAPITAL COST ($) 290,000 1,200,000 

ANNUAL O&M COST ($) 6,000 18,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



2288 2288 
2044.5 1413.9 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 3200 19,400 



TREATMENT COST (C/1000 gals) 



14.3 52.9 



34 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN ARLINGTON 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


140 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


4.4 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


77 




SUSP. SOLIDS, LBS. 


920 




BOD5 


135 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




SP 


VOLUME TREAT . , MG 




3.0 


% TREATED 




68.2 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




73.2 


SUSP. SOLIDS, LBS. 




828.0 


BOD5, LBS. 




114.8 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




3.8 


SUSP. SOLIDS, LBS. 




92.0 


BOD5, LBS. 




20.2 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




2.1 


SUSP. SOLIDS mg/1 




25.0 


BOD5 mg/1 




3.7 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




0.1 


SUSP. SOLIDS mg/1 




2.5 


BOD5 mg/1 




0.6 



NT 



77 
920 
135 



2.1 

25.0 

3.7 

2.1 

25.0 

3.7 

TOTAL CAPITAL COST ($) 160,000 

ANNUAL O&M COST ($) 3,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 1055 1055 

REMOVED, LBS. 942.8 

% REMOVED 89.4 

CAPITAL COSTS/ % REMOVAL ($) 1,800 

TREATMENT COST (C/1000 gals) 20.1 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



35 



TOWN 



ASHLAND 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



000 
121 

3.0 

28 

342 
50 



NT 



28 

342 

50 



1 

13 

2 

1 

13 

2 



392 



SP 
2.1 

70.0 

26.6 

307.8 

42.5 

1.4 

34.2 

7.5 



1.1 

13.7 

2.0 

0.06 
1.4 
0.3 

125,000 
3,000 



392 

350.3 

89.4 

1,400 
23.7 



36 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN BELLINGHAM 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1274 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. . 3 9.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 8,4 00 32,4 00 

TREATMENT COST (C/1000 gals) 11.2 32.4 



518 






6121 






900 








SP 


SMD 




27.3 


27.3 




68.6 


68.6 




492.1 


492.1 




5508.9 


3978.7 




765.0 


360.0 




25.9 


25.9 




612.1 


2142.3 




135 


540 




1.6 


1.6 




18.4 


18.4 




2.7 


2.7 




0.08 


0.08 




1.8 


6.5 




0.4 


1.6 




750,000 


2,000,000 




20,000 


70,000 




7021 


7021 




6273.9 


4338.7 




89.4 


61.8 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



37 



TOWN 



BELMONT 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
832 

27.3 



538 








6414 








943 










SP 


SMD 


MD 




18.7 


18.7 


18.7 




68.5 


68.5 


68.5 




511.1 


511.1 


484.2 




5772.6 


4169.1 


2886.3 




801.5 


377.2 


188.6 




26.9 


26.9 


53.8 




641.4 


2249.9 


3527.7 




141.5 


565.8 


759.4 




2.4 


2.4 


2.4 




28.2 


28.2 


28.2 




4.1 


4.1 


4.1 




0.1 


0.1 


0.2 




2.8 


9.9 


15.5 




0.6 


2.5 


3.3 




525,000 


1,700,000 


3,000,000 




13,000 


40,000 


150,000 




7367 


7367 


7367 




6574.1 


4546.3 


3074.9 




89.4 


61.8 


41.8 



5,600 



27,500 



72,000 



TREATMENT COST (C/10 00 gals 



11.2 



36.0 



80.5 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



38 



TOWN 



DEDHAM 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
2144 

70.0 

1066 

12668 

1863 



SP 
47.9 
68.4 

1012.7 

11401.2 

1583.6 

53.3 

1266.8 

279.4 



1.8 

21.7 

3.2 

0.09 
2.2 
0.5 

1,125,000 
32,000 



14531 

12984.8 

89.4 

12,600 



SMD 
47.9 
68.4 

1012.7 

8234.2 

745.2 

53.3 
4433.8 
1117.8 



1.8 

21.7 

3.2 

0.09 
7.6 
1.9 

2,650,000 
110,000 



14531 

8979.4 

61.8 

42,900 



MD 

47.9 

68.4 

959.4 

5700.6 

372.6 

106.6 
6967.4 
1490.4 



1.8 

21.7 

3.2 

0. 2 
11.9 
2,6 

7,000,000 
350,000 



14531 

6073.2 

41.8 

168,000 



TREATMENT COST (C/1000 qals) 



9.8 



25.9 



73.3 



39 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN DOVER 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2703 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


72.4 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


546 






SUSP. SOLIDS, LBS. 


6535 






BOD 5 


961 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




49.7 


49.7 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




518.7 


518.7 


SUSP. SOLIDS, LBS. 




5881.5 


4247.8 


BOD5, LBS. 




816.9 


384.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




27.3 


27.3 


SUSP. SOLIDS, LBS. 




653.5 


2,287.3 


BOD5, LBS. 




144.1 


576.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




0.9 


0.9 


SUSP. SOLIDS mg/1 




10.8 


10.8 


BOD5 mg/1 




1.6 


1.6 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.1 


3.4 


BOD5 mg/1 




0.2 


0.6 


TOTAL CAPITAL COST ($) 


1. 


150,000 


2,600,000 


ANNUAL O&M COST ($) 




33,000 


120,000 


SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, LBS. 




7496 


7496 


REMOVED, LBS. 




6698.4 


4632.4 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 12,900 42,100 

TREATMENT COST (C/1000 gals) 9 - 6 25 - 4 



40 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



BASIN/ AREA 

TOWN FRANKLIN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 3 52 8 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 104.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1270 

SUSP. SOLIDS, LBS. 15089 

BOD5 2218 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/i 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 3,500,000 1,600,000 

ANNUAL O&M COST ($) 170,000 52,000 

SUSP. SOLIDS 1- BOD5 

BEFORE TREATMENT, LBS. 17307 17307 

REMOVED, LBS. 10695.1 15465.4 



SMD 


SP 


71.7 


71.7 


68.5 


68.5 


1206.5 


1206.5 


9807.9 


13580.1 


887.2 


1885.3 


63.5 


63.5 


5281.1 


1508.9 


1330.8 


332.7 


1.5 


1.5 


17.3 


17.3 


2.5 


2.5 


0.07 


0.07 


6.1 


1.7 


1.5 


0.4 



REMOVED 



61.8 89.4 



CAPITAL COSTS/% REMOVAL ($) 56,600 17,900 



TREATMENT COST (C/10 00 gals 



29.2 9.6 



41 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN HOLLISTON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3407 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


101.7 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


936 






SUSP. SOLIDS, LBS. 


11,137 






BOD 5 


1637 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SMD 


SP 


VOLUME TREAT . , MG 




69.8 


69.8 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




889.2 


889.2 


SUSP. SOLIDS, LBS. 




7239.1 


10,023.3 


BOD5 , LBS . 




654.8 


1391.5 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




46.8 


46.8 


SUSP. SOLIDS, LBS. 




3897.9 


1113.7 


BOD5 , LBS . 




982.2 


245.7 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




13.1 


13.1 


BOD5 mg/1 




1.9 


1.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




4.6 


1.3 


BOD5 mg/1 




1.2 


0.3 



TOTAL CAPITAL COST ($) 3,400,000 1,500,000 

ANNUAL O&M COST ($) 170,000 50,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 55,000 16,800 



12,774 


12,774 


7893.9 


11,414.8 


61.8 


89.4 



TREATMENT COST (C/1000 gals) 



24.4 9.3 



42 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



75 



TOWN HOPEDALE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 316 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 7.7 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 42 

SUSP. SOLIDS, LBS. 513 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) ~ 2,700 

TREATMENT COST (C/1000 gals) 17 *° 



NT 


SP 


- 


5.2 


- 


67.5 


— 


39.9 


- 


461.7 


- 


63.8 


42 


2.1 


513 


51.3 


75 


11.2 


0.7 


0.7 


8.0 


8.0 


1.2 


1.2 


0.7 


0.03 


8.0 


0.8 


1.2 


0.2 


— 


240,000 


~" 


4,000 


588 


588 


- 


525.5 


- 


89.4 



43 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN HOPKINTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 



182 

4.4 
45 



NT 



SUSP. SOLIDS, LBS. 543 

BOD 5 80 

STORMWATER TREATMENT 

TREAT . DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/i 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 fi2 - 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/10 gals) 



45 

543 

80 



1.2 

14.8 

2.2 



1 

14 

2 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



44 



TOWN 



LEXINGTON 



URBAN DRAINAGE AREA 
YEAR 
ACRES 


2000 
2284 




TOTAL STORM RUNOFF VOL. 
MIL. GAL. 


61.0 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD 5 
STORMWATER TREATMENT 


741 
8840 
1300 




TREAT. DESCRIP. 




SP 


VOLUME TREAT . , MG 




41.8 


% TREATED 




68.5 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




704.0 


SUSP. SOLIDS, LBS. 
BOD5, LBS. 




7956.0 
1105.0 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




37.0 


SUSP. SOLIDS, LBS. 




884 


BOD5, LBS. 




195 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.5 


SUSP. SOLIDS mg/1 




17.4 


BOD5 mg/1 
AFTER TREATMENT 




2.6 


SETT. SOLIDS mg/1 




0.07 


SUSP. SOLIDS mg/1 




1.7 


BOD5 mg/1 




0.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. S0LI2S - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



SMD 


41, 


.6 


68, 


.5 


704, 


.C 


5746, 


. 


520, 


.0 


37, 


. 


3094 


780 


1, 


.5 


17, 


,4 


2, 


.6 


0.07 


6. 


,1 


1, 


.5 



1,000,000 2,500,000 
32,000 100,000 



10,140 
9061 

89.4 

11,200 



10,140 
6266 
61.8 

40,500 



TREATMENT COST (C/1000 gals) 



10.3 



27.6 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



45 



TOWN 



LINCOLN 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1863 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


46.4 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


330 






SUSP. SOLIDS, LBS. 


3967 






BOD5 


583 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




31.7 


31.7 


% TREATED 




68.3 


68.3 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




313.5 


313.5 


SUSP. SOLIDS, LBS. 




3570.3 


2578.5 


BOD5, LBS. 




495.5 


233.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




16.5 


16.5 


SUSP. SOLIDS, LBS. 




396.7 


1388.5 


BOD5, LBS. 




87.5 


299.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




0.9 


0.9 


SUSP. SOLIDS mg/1 




10.3 


10.3 


BOD5 mg/1 




1.5 


1.5 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.04 


0.04 


SUSP. SOLIDS mg/1 




1.0 


6.7 


BOD5 mg/1 




0.2 


0.8 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



00,000 2,150,000 
22,000 75,000 



4550 4550 

4065.8 2811.7 

89.4 61.8 



9,000 



34,800 



TREATMENT COST (C/1000 gals) 



10.4 



29.9 



46 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN MEDFIELD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2786 

TOTAL STORM RUNOFF VOL ' 

MIL. GAL. 81.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS r BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
%. REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



73.2 






8709 






1280 








SP 


SMD 




56.2 


56.2 




68.6 


68.6 




695.4 


695.4 




7,838.1 


5,660.9 




1,088.0 


512.0 




36.6 


36.6 




870.9 


3,048.1 




192 


768 




1.1 


1.1 




12.8 


12.8 




1.9 


1.9 




0.05 


0.05 




1.3 


4.5 




0.3 


1.1 


1. 


260,000 


3,000,000 




48,000 


135,000 




9989 


9989 




8926.1 


6172.9 




89.4 


61.8 




14,100 


48,500 




10.2 


25.7 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



47 



TOWN 



MED WAY 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2078 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


65.6 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


811 






SUSP. SOLIDS, LBS. 


9607 






BOD5 


1412 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




45.0 


45.0 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




770.5 


770.5 


SUSP. SOLIDS, LBS. 




8646.3 


6244.6 


BOD5, LBS. 




1200.2 


564.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




40.5 


40.5 


SUSP. SOLIDS, LBS. 




960.7 


3362.4 


BOD5, LBS. 




211.8 


847.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.5 


1.5 


SUSP. SOLIDS mg/1 




17.6 


17.6 


BOD5 mg/1 




2.6 


2.6 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.8 


6.1 


BOD5 mg/1 




0.4 


1.5 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



1,100,000 2,600,000 
32,000 105,000 



11,019 11,019 

9846.6 6809.4 

89.4 61.8 



12,300 



42,100 



TREATMENT COST (C/1000 gals) 



10.2 



26.8 



48 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN MENDON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 155 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 28 

SUSP. SOLIDS, LBS. 335 

BOD 5 4 9 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 2 8 

SUSP. SOLIDS, LBS. 335 

BOD5, LBS. 4 9 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 0.9 

SUSP. SOLIDS mg/1 10.6 

BOD5 mg/1 1.5 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.9 

SUSP. SOLIDS mg/1 10.6 

BOD5 mg/1 1.5 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 384 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 






STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



49 



TOWN 



MILFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
2528 

77.4 

1079 

12,829 

1886 



SP 
53.1 
68.6 



1,025 

11,546 

1603 

53 

1282 

282 



1 

19 

2 



0.08 
2.0 
0.4 

1,250,000 
35,000 



14,715 

13,149.2 
89.4 

14,000 



SMD 
53.1 
68.6 



025 
338 
754 



53.9 
4490.1 
1131.6 



1 

19 

2 



0.08 
7.0 
1.8 

2,850,000 
125,000 



14,715 

9093.3 

61.8 

46,100 



TREATMENT COST (C/1000 gals) 



9.8 



25.6 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



50 



TOWN 



MILLIS 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
1781 

53.1 

756 
7554 
1112 



SP 
36.4 
68.5 

718.2 

6,798.6 

945.2 

37.8 
755.4 
166.8 



1.7 

17.1 

2.5 

0.09 
1.7 
0.4 

900,000 
23,000 



8666 

7743.8 

89.4 

10,100 
10.0 



SMD 
36.4 
68.5 

718.2 

4,910.1 

444.8 

37.8 

2,643.9 

667.2 



1.7 

17.1 

2.5 

0.09 
6.0 

1.5 

2,300,000 
82,000 



8666 

5354.9 

61.8 

37,200 
28.1 



51 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN NATICK 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2 3 83 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 76.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1139 
SUSP. SOLIDS, LBS. 13541 
BOD 5 1991 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP DMD 

VOLUME TREAT., MG 52.2 52.2 

% TREATED 68.2 68.2 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 1,082.1 1,082.1 

SUSP. SOLIDS, LBS. 12,186.9 8,801.7 

BOD5, LBS, 1,692.4 796.4 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 56.9 56.9 

SUSP. SOLIDS, LBS. 1,354.1 4,739.3 

BOD 5 , LBS. 298.7 1,194.6 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.8 1.8 

SUSP. SOLIDS mg/1 21.2 21.2 

BOD5 mg/1 3.1 3.1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.09 0.09 

SUSP. SOLIDS mg/1 2.1 7.4 

ROD5 mg/1 0.5 1.9 

TOTAL CAPITAL COST ($) 1,200,000 2,800,000 

ANNUAL O&M COST ($) 37,000 125,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 



15532 15532 



REMOVED, LBS. 13,879.3 9598.1 

% REMOVED 89 - 4 61.8 

CAPITAL COSTS/% REMOVAL ($) 13,4 00 45,300 



TREATMENT COST (C/10 00 gals 



9.7 25.8 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



52 



TOWN 



NEEDHAM 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 4879 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 161.4 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 3046 

SUSP. SOLIDS, LBS. 36299 

BOD5 5337 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



110 
68 

2893 

32669 

4536 

152 

3629 

800 



2 

27 

4 


2 




SP 
7 

6 



2,200,000 
78,000 



41,636 

37,205.6 

89.4 

24,600 



SMD 

110.7 

68.6 

2893.7 

23,594.4 

2134.8 

152.3 

12,704.6 

3202.2 



2.3 

27.0 

4.0 



4,500,000 
270,000 



41,636 

25,729.2 

61.8 

72,800 



MD 
110 
68 

2741 

16,334 

1067 

304 

19,964 

4269 



2 

27 
4 



0.2 

14.8 

3.2 



16,000,000 
800,000 



41,636 

17,402.0 

41.8 

383,000 



TREATMENT COST (C/1000 gals) 



8.8 



22.0 



72.5 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



53 



TOWN 



NEWTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
8152 

266.0 

5480 

65425 

9621 



SP 

182.4 

68.6 

5206 

58,882.5 

8177.9 

274 
6542.5 
1443.1 



2 
29 

4 


3 




3,350,000 
129,000 



75046 

67060.4 

89.4 

37,500 



SMD 

182.4 

68.6 

5206 

42,526.3 

3848.4 

274 

22898.7 

5772.6 



2.5 

29.5 

4.3 

0.1 

10.3 

2.6 

6,200,000 
420,000 



75046 

46374.7 

61.8 

100,300 



182.4 
68.6 

4932 

29,441.3 
1924.2 

548 

35983.7 

7696.8 



2.5 

29.5 

4.3 

0.2 

16.2 

3.5 

26,000,000 
1,300,000 



75046 

31365.5 

41.8 

622,000 



TREATMENT COST (C/1000 gals) 



8.4 



19.5 



71.5 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



54 



TOWN 



NORFOLK 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


4372 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


144.5 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1607 






SUSP. SOLIDS, LBS. 


19086 






BOD 5 


2807 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SMD 


SP 


VOLUME TREAT . , MG 




99.0 


99.0 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1526.7 


1526.7 


SUSP. SOLIDS, LBS. 




12,4 05.9 


17,177.4 


BOD5, LBS. 




1122.8 


2386.0 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




80.3 


80.3 


SUSP. SOLIDS, LBS. 




6,680.1 


1908.6 


BOD5, LBS. 




1,684.2 


421.0 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.3 


1.3 


SUSP. SOLIDS mg/1 




15.8 


15.8 


BOD5 mg/1 




2.3 


2.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




5.5 


1.6 


BOD5 mg/1 




1.4 


0.3 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



4,200,000 2,000,000 
235,000 73,000 



21,893 21,893 

13,528.7 19,563.4 

61.8 89.4 



68,000 



22,400 



TREATMENT COST (C/1000 gals) 



22.3 



9.0 



55 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN SHERBORN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 290 8 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 85.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 689 

SUSP. SOLIDS, LBS. 8180 

BOD 5 1202 

STORMWATER TREATMENT 

TREAT. DE SCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



SP 


SMD 


58.7 


58.7 


68.6 


68.6 


654.6 


654.6 


7,362 


5,317 


1,021.7 


480.8 


34.4 


34.4 


818 


2,863 


180.3 


721.2 


1.0 


1.0 


11.5 


11.5 


1.7 


1.7 


0.05 


0.05 


1.1 


4.0 


0.3 


1.0 


1,300,000 


3,100,000 


42,000 


140,000 


9382 


9382 


8383.7 


5797.2 


89.4 


61.8 


14,500 


50,200 


9.5 


25.5 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



56 



TOWN 



SOMERVILLE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
656 

28.6 



519 








6085 








894 










SP 


SMD 


MD 




19.7 


19.7 


19.7 




68.9 


68.9 


68.9 




493.1 


493.1 


467.1 




5476.5 


3955.2 


2738.3 




759.9 


357.6 


178.8 




25.9 


25.9 


51.9 




608.5 


2129.8 


3346.7 




134.1 


536.4 


715.2 




2.2 


2.2 


2.2 




25.5 


25.5 


25.5 




3.7 


3.7 


3.7 




0.1 


0.1 


0.2 




2.6 


3.9 


14.0 




0.6 


2.2 


3.0 




550,000 


1,750,000 


3,000,000 




13,000 


41,000 


150,000 




6979 


6979 


6979 




6236.4 


4312.8 


2917.1 




89.4 


61.8 


41.8 



6,200 



28,300 



72,000 



TREATMENT COST (C/1000 gals) 



11.1 



35.1 



76.4 



57 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN WALPOLE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 151 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 44 

SUSP. SOLIDS, LBS. 528 

BOD 5 78 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BODr, LBS. 



POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 


44 


SUSP. SOLIDS, LBS. 


528 


BOD5, LBS. 


78 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 




SETT. SOLIDS mg/1 


1.3 


SUSP. SOLIDS mg/1 


15.8 


BOD5 mg/1 


2.3 


AFTER TREATMENT 




SETT. SOLIDS mg/1 


1.3 


SUSP. SOLIDS mg/1 


15.8 


BOD5 mg/1 


2.3 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP, SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 6 06 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



58 



TOWN 



WALT HAM 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 5789 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 217.4 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 5351 
SUSP. SOLIDS, LBS. 63,716 
BOD 5 9371 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP 

VOLUME TREAT., MG 149.0 

% TREATED 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 5083 

SUSP. SOLIDS, LBS. 57,344 

BOD5, LBS. 7964 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 267 

SUSP. SOLIDS, LBS. 6371 

BOD5, LBS. 1405 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 3.0 

SUSP. SOLIDS mg/1 35.1 

BOD5 mg/1 5.2 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.1 

SUSP. SOLIDS mg/1 3.5 

BOD5 mg/1 0.8 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2,850,000 
107,000 



73087 

65308.8 

89.4 

31,900 



SMD 

149.0 

68.5 

5085.5 

41,415.4 

3748.4 

267.5 

22300.6 
5622.6 



3.0 

35.1 

5.2 

0.1 

12.3 

3.0 

5,400,000 
350,000 



73087 

45, 163. € 

61.8 

87,400 



MD 
149 
68 

4815 

28,672 

1874 



535.1 
35,043.8 
7496.8 



3.0 

35.1 

5.2 

0.3 

19.3 

4.1 

22,000,000 
1,100,000 



73087 

30,546.4 

41.8 

526,000 



TREATMENT COST (C/1000 gals) 



8.6 



20.3 



74.1 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



59 



TOWN 



WATERTOWN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals 



2000 
1309 

47.0 

972 

11547 

1698 



10 



SP 
32.3 
68.7 

923.4 
,392.3 
1443.3 

48.6 

1154.7 

254.7 



2 
29 

4 


2 




800,000 
22,000 



13245 

11835.6 

89.4 

9,000 



10.2 



SMD 
32.3 
68,7 

923.4 

7,505.5 
679.2 

48.6 
4041.5 
1018.8 



2.5 

29.5 

4.3 

0.1 

10.3 

2.6 

2,200.000 
75,000 



13245 

8189.7 

61.8 

35,600 
29.8 



MD 

32.3 

68.7 

874.8 

5196.2 

339.6 

97.2 
6350.8 
1358.4 



2.5 

29.5 

4.3 

0.2 

16.2 

3.5 

5,000,000 
250,000 



13245 

5535.8 

41.8 

120,000 
77.7 



60 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN WAYLAND 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 227 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 5.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 26 

SUSP. SOLIDS, LBS. 406 

BOD 5 60 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP NT 

VOLUME TREAT . , MG 3.6 

% TREATED 6 9.2 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 24.7 

SUSP. SOLIDS, LBS. 365.4 

BOD5, LBS. 51.0 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 1-3 26 

SUSP. SOLIDS, LBS. 40.6 406 

BOD5, LBS. 9.0 60 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 0-6 0.6 

SUSP, SOLIDS mg/1 9.4 9.4 

BOD5 mg/1 - 1-4 1.4 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.0 3 0.6 

SUSP. SOLIDS ma/1 0.9 9.4 

BOD5 mg/1 0.2 1.4 

TOTAL CAPITAL COST ($) 190,000 

ANNUAL O&M COST ($) 4,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 4 66 466 

REMOVED, LBS, 416.4 

% REMOVED 8 9.4 

CAPITAL COSTS/% REMOVAL ($) 2,100 

TREATMENT COST (0/1000 gals) 20.4 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



61 



TOWN 



WELLESLEY 



URBAN DRAINAGE AREA 
















YEAR 


2000 














ACRES 


5078 














TOTAL STORM RUNOFF VOL. 
















MIL. GAL. 


152.0 














TOTAL STORMWATER POLLUTANTS 
















SETT. SOLIDS, LBS. 


2438 














SUSP. SOLIDS, LBS. 


29167 














BOD 5 


4291 














STORMWATER TREATMENT 
















TREAT. DESCRIP. 






SP 




SMD 




MD 


VOLUME TREAT . , MG 






104.2 




104.2 




104.2 


% TREATED 






68.6 




68.6 




68.6 


POLLUTANT REMOVALS 
















SETT. SOLIDS, LBS. 




2 


,316.1 


2, 


,316.1 


2 


,194.2 


SUSP. SOLIDS, LBS. 


26 


r 250.3 


18 


,958.6 


13 


,125.2 


BOD5, LBS. 




3 


r 647.4 


1 


,716.4 




858.2 


POLLUTANTS DISCHARGED 
















SETT. SOLIDS, LBS. 






121.9 




121.9 




243.8 


SUSP. SOLIDS, LBS. 




2 


,916.7 


10, 


r 208.4 


16 


,041.8 


BOD5, LBS. 






643.7 


2, 


,574.6 


3 


,432.8 


AVG. POLLUTANT CONCENTRATIONS 














BEFORE TREATMENT 
















SETT. SOLIDS mg/1 






1.9 




1.9 




1.9 


SUSP. SOLIDS mg/1 






23.0 




23.0 




23.0 


BOD5 mg/1 






3.4 




3.4 




3.4 


AFTER TREATMENT 
















SETT. SOLIDS mg/1 






0.1 




0.1 




0.2 


SUSP. SOLIDS mg/1 






2.3 




8.1 




12.7 


BOD5 mg/1 






0.5 




2.0 




2.7 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2,150,000 4,400,000 15,500,000 
74,000 245,000 775,000 



33458 

29897.7 

89.4 

24,000 



33458 

20675.0 

61.8 

71,200 



33458 

13,983.4 

41.8 

371,000 



TREATMENT COST (C/1000 gals) 



9.1 



22.2 



74.7 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



62 



TOWN 



WESTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
2328 

78.3 

1109 

13196 

1941 



SP 
53.7 
68.6 



1053 

11876 

1649 

55 

1319 

291 



1.7 

20.2 

3.0 

0.08 
2.0 
0.4 



SMD 
53.7 
68.6 



1053 

8577 

776 

55 
4618 
1164 



1 

20 

3 



0.08 
7.1 
1.8 



1,250,000 2,850,000 
35,000 125,000 



15137 

13526.3 

89.4 

14,000 



15137 

9353.8 

61.8 

46,100 



TREATMENT COST (C/1000 gals) 



9.6 



25.3 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



63 



TOWN 



WESTWOOD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1259 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


34.8 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


417 






SUSP. SOLIDS, LBS. 


4982 






BOD5 


733 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




23.9 


23.9 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




396.2 


396.2 


SUSP. SOLIDS, LBS. 




4483.8 


3238.3 


BOD5, LBS. 




623.1 


293.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




20.8 


20.8 


SUSP. SOLIDS, LBS. 




498.2 


1743.7 


BOD5, LBS. 




109.9 


439.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.4 


1.4 


SUSP, SOLIDS mg/1 




17.2 


17.2 


BOD5 mg/1 




2.5 


2.5 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS ma/1 




1.7 


6.0 


BOD5 mg/1 




0.4 


1.5 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



700,000 1,800,000 
17,000 65,000 



SUSP. SOLIDS t BOD5 








BEFORE TREATMENT, 


LBS. 


5715 


5715 


REMOVED, LBS. 




5106.9 


3531.5 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



7,800 



29,100 



TREATMENT COST (0/1000 gals) 



11.7 



33.6 



64 



STORMWATER MANAGEMENT SUMMARY 
CHARLES RIVER BASIN 



TOWN WRENTHAM 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1132 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 37.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 52 1 

SUSP. SOLIDS, LBS. 6156 
BOD 5 905 

STORMWATER TREATMENT 

TREAT. DESCRIP. SMD SP 

VOLUME TREAT., MG 25.5 25.5 

% TREATED 68.5 6 8.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 495.1 495.1 

SUSP. SOLIDS, LBS. 4001.4 5540.4 

BOD5, LBS. 362 769.3 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 25.9 25.9 

SUSP. SOLIDS, LBS. 2154.6 615.6 

BOD5, LBS. 543 135.7 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1-7 1.7 

SUSP. SOLIDS mg/1 19.8 19.8 

BOD5 mg/1 2.9 2.9 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0-08 0.08 

SUSP. SOLIDS mg/1 6.9 2.0 

BOD5 mg/1 I- 8 0-4 

TOTAL CAPITAL COST ($) 1,900,000 750,000 

ANNUAL O&M COST ($) 75,000 19,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



7061 7061 
4363.4 6309.7 



61.8 89.4 
CAPITAL COSTS/% REMOVAL ($) 3 0,700 8,400 



TREATMENT COST (C/10 gals) 



34.3 H.8 



STORMWATER MANAGEMENT SUMMARY 
CHELSEA RIVER BASIN 



65 



TOWN 



EVERETT 



URBAN DRAINAGE AREA 










YEAR 


2000 








ACRES 


156 








TOTAL STORM RUNOFF VOL. 










MIL. GAL. 


5.5 








TOTAL STORMWATER POLLUTANTS 










SETT. SOLIDS, LBS. 


112 








SUSP. SOLIDS, LBS. 


1340 








BOD5 


197 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




NT 


SP 


SMD 


VOLUME TREAT . , MG 




- 


3.8 


3.8 


% TREATED 




- 


69.1 


69.1 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




- 


106.4 


106.4 


SUSP. SOLIDS, LBS. 




- 


1206 


871 


BOD5, LBS. 




- 


167.5 


78.8 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




112 


5.6 


5.6 


SUSP. SOLIDS, LBS. 




1340 


134 


469 


BOD5, LBS. 




197 


29.5 


118.2 


AVG. POLLUTANT CONCENTRATIONS 










BEFORE TREATMENT 










SETT. SOLIDS mg/1 




2.4 


2.4 


2.4 


SUSP. SOLIDS mg/1 




29.2 


29.2 


29.2 


BOD5 mg/1 




4.3 


4.3 


4.3 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




2.4 


0.1 


0.1 


SUSP. SOLIDS mg/1 




29.2 


2.9 


10.2 


BOD5 mg/1 




4.3 


0.6 


2.6 


TOTAL CAPITAL COST ($) 




- 


190,000 


800,000 


ANNUAL O&M COST ($) 




~ 


4,000 


10,000 


SUSP. SOLIDS + BOD5 










BEFORE TREATMENT, LBS. 




1537 


1537 


1537 


REMOVED, LBS. 




- 


1373.5 


949.8 


% RFMDVF.n 




- 


89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($ 



2100 



12,900 



TREATMENT COST (C/100 gals) 



20.4 



74.0 



66 



STORMWATER MANAGEMENT SUMMARY 
CHELSEA RIVER BASIN 



TOWN REVERE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 348 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 13 -! 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 271 

SUSP. SOLIDS, LBS. 3207 

BOD 5 472 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT . , MG 9 • ° 9 • ° 

% TREATED 68.7 6 8.7 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS 



257.5 257.5 



SUSP. SOLIDS, LBS. 2886.3 2084.5 



401.2 188.8 



BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 70 - 8 283-2 

AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 



13.5 13.5 
320.7 1122.5 



SETT. SOLIDS mg/1 
SUSP. SOLIDS mg/1 
BOD5 mg/1 
AFTER TREATMENT 
SETT. SOLIDS mg/1 
SUSP. SOLIDS mg/1 
BOD5 mg/1 



2.5 2.5 

29.3 29.3 

4.3 4.3 



0.1 0.1 
2.9 10.3 
0.6 2.6 



TOTAL CAPITAL COST ($) 325,000 1,250,000 

ANNUAL O&M COST ($) 7,000 24,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



3679 3679 
3287.5 2273.3 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 3,6 00 20,200 

TREATMENT COST (C/1000 gals) 14.3 52.6 



67 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



TOWN BEDFORD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 98 8 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 35.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 836 

SUSP. SOLIDS, LBS. 9985 
BOD5 1470 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT . , MG 24.6 24.6 

% TREATED 6 8.9 6 8.9 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 794.2 794.2 

SUSP. SOLIDS, LBS. 8986.5 6490.2 

BOD5, LBS. 12495 588 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 41.8 41.8 

SUSP. SOLIDS, LBS. 989.5 3494.8 

BOD5, LBS. 220.5 882 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 2 -8 2.8 

SUSP. SOLIDS mg/1 33.4 33.4 

BOD5 mg/1 4.9 4.9 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.1 0.1 

SUSP. SOLIDS mg/1 3.3 11.7 

BOD5 mg/1 0.1 2.9 

TOTAL CAPITAL COST ($) 700,000 2,000,000 

ANNUAL O&M COST ($) 18,000 60,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



11455 11455 
10236 7078.2 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 7,800 32,400 



TREATMENT COST (C/1000 gals) 



11.8 33.5 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



68 



TOWN 



BILLERICA 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3686 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


107.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1298 






SUSP. SOLIDS, LBS. 


15435 






BOD5 


2269 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




73.5 


73.5 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1233.1 


1233.1 


SUSP. SOLIDS, LBS. 




13891.5 


10032.8 


BOD5, LBS. 




1928.7 


907.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




64.9 


64.9 


SUSP. SOLIDS, LBS. 




1543.5 


5402.2 


BOD5, LBS. 




340.3 


1361.4 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.5 


1.5 


SUSP. SOLIDS mg/1 




17.3 


17.3 


BOD5 mg/1 




2.5 


2.5 


AFTER TREATMENT 








SETT. SOLIDS mg/l 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.7 


6.0 


BOD5 mg/1 




0.4 


1.5 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



1,575,000 3,475,000 
54,000 170,000 



17704 

15820.2 

89.4 

17,600 



17704 

10940.4 

61.8 

56,200 



TREATMENT COST (C/1000 gals 



9.2 



23.7 



69 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



TOWN CARLISLE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2136 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 56.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT. , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



408 






4891 






719 








SP 


SMD 




38.3 


38.3 




68.4 


68.4 




387.6 


387.6 




4401.9 


3179.2 




611.2 


287.6 




20.4 


20-4 




489.1 


1711.8 




107.8 


431.4 




0.9 


0.9 




10.5 


10.5 




1.5 


1.5 




0.4 


0.4 




1.0 


3.7 




0.2 


0.9 


1, 


000,000 


2,450,000 




28,000 


90,000 




5610 


5610 




5013.1 


3466.8 




89.4 


61.8 




11,200 


39,600 




10.5 


28.0 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



70 



TOWN 



CHELMSFORD 



URBAN DRAINAGE AREA 










YEAR 


2000 








ACRES 


5278 








TOTAL STORM RUNOFF VOL. 










MIL. GAL. 


153.0 








TOTAL STORMWATER POLLUTANTS 










SETT. SOLIDS, LBS. 


1939 








SUSP. SOLIDS, LBS. 


23115 








BOD 5 


3399 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




104.9 


104.9 


104.9 


% TREATED 




68.6 


68.6 


68.6 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




1842 


1842 


1745.1 


SUSP. SOLIDS, LBS. 




20803.5 


15024.8 


10401.8 


BOD5, LBS. 




2889.2 


1359.6 


679.8 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




97 


97 


193.9 


SUSP. SOLIDS, LBS. 




2311.5 


8090.2 


12713.2 


BOD5, LBS. 




509.8 


2039.4 


2719.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




1.5 


1.5 


1.5 


SUSP. SOLIDS mg/1 




18.1 


18.1 


18.1 


BOD5 mg/1 




2.7 


2.7 


2.7 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.08 


0.08 


0.2 


SUSP. SOLIDS mg/1 




1.8 


6.3 


10.0 


BOD5 mg/1 




0.4 


1.6 


2.1 


TOTAL CAPITAL COST ($) 


2, 


100,000 


4,300,000 


15,500,000 


ANNUAL O&M COST ($) 




77,000 


245,000 


775,000 


SUSP. SOLIDS + BOD5 










BEFORE TREATMENT, LBS. 




26514 


26514 


26514 


REMOVED, LBS. 




23692.7 


16384.4 


11081.6 


% REMOVED 




89.4 


61.8 


41.8 


CAPITAL COSTS/% REMOVAL ($) 




23,500 


69,600 


371,000 



TREATMENT COST (C/10 00 gals) 



8.7 



21.9 



73.3 



71 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



TOWN CONCORD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1195 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 36.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP- SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 8,400 32,400 

TREATMENT COST (C/1000 gals) 1:L * 7 33 '° 



576 






6895 






1014 








SP 


SMD 




25.1 


25.1 




68.8 


68.8 




547.2 


547.2 




6205.5 


4481.8 




861.9 


405.6 




28.8 


28.8 




689.5 


2413.2 




152.1 


608.4 




2.0 


2.0 




23.4 


23.4 




3.4 


3.4 




0.1 


0.1 




2.3 


7.9 




0.5 


2.0 




750,000 


2,000,000 




19,000 


60,000 




7909 


7909 




7067.4 


4887.4 




89.4 


61.8 



72 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



288 
42 



TOWN LINCOLN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 128 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3 - 3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 24 

SUSP. SOLIDS, LBS. 288 

BOD5, LBS. 42 

AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 °' 9 

SUSP. SOLIDS mg/1 10 - 5 

BOD5 mg/1 1 - 5 

AFTER TREATMENT 

SETT. SOLIDS mg/1 °- 9 

SUSP. SOLIDS mg/1 10 - 5 

BOD5 mg/1 °- 9 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 330 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



73 



TOWN 



LOWELL 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 
'TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals 



2000 
2438 

84.4 

1546 

18335 
2695 



SP 
57.8 
68.5 

1468.7 

16501.5 

2290.8 

77.3 

1833.5 

404.2 



2.2 

26.0 

3.8 

0.1 
2.6 
0.6 

1,300,000 
44,000 



21,030 

18792.3 

89.4 

14,500 



9.7 



SMD 
57.8 
68.5 

1468.7 

11917.8 

1078 

77.3 

6417.2 

1617 



2.2 

26.0 

3.8 

0.1 
9.1 
2.3 

3,100,000 
140,000 



21,030 

12995.8 

61.8 

50,200 
25.3 



MD 

57.8 

68.5 

1391.4 

8250.8 

539 

154.6 

10084.2 

2156 



2.2 

26.0 

3.8 

0.2 

14.3 

3.1 

,500,000 
425,000 



21,030 

8789.8 

41.8 

203,000 



74.8 



74 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



TOWN TEWKSBURY 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


294 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


10.4 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


162 






SUSP. SOLIDS, LBS. 


1919 






BOD 5 


282 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




7.1 


7.1 


% TREATED 




68.3 


68.3 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




153.9 


153.9 


SUSP. SOLIDS, LBS. 




1727.1 


1247.4 


BOD5, LBS. 




239.7 


112.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




8.1 


8.1 


SUSP. SOLIDS, LBS. 




191.9 


671.6 


BOD5, LBS. 




42.3 


169.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.9 


1.9 


SUSP. SOLIDS mg/1 




22.1 


22.1 


BOD5 mg/1 




3.3 


3.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.2 


7.7 


BOD5 mg/1 




0.5 


2.0 



TOTAL CAPITAL COST ($) 260,000 1,130,000 

ANNUAL O&M COST ($) 5,000 19,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


2201 


2201 


REMOVED, LBS. 




1966.8 


1360.2 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 2,900 18,300 

TREATMENT COST (C/1000 gals) 15.0 58.7 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



75 



TOWN 



WESTFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MILc GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
192 

4.4 

44 

529 

78 



NT 


SP 


SMD 


- 


3.0 


3.0 


- 


68.2 


68.2 


_ 


41.8 


41.8 


- 


476.1 


343.8 


- 


66.3 


31.2 


44 


2.2 


2.2 


529 


52.9 


185.2 


78 


11.7 


46.8 


1.2 


1.2 


1.2 


14.5 


14.5 


14.5 


2.1 


2.1 


2.1 


1.2 


0.06 


0.06 


14.5 


1.4 


5.0 


2.1 


0.3 


1.3 


_ 


150,000 


750,000 


- 


3,000 


9,000 


607 


607 


607 


- 


542.4 


375 


- 


89.4 


61.8 



1,700 



12,100 



TREATMENT COST (C/100 gals) 



20.0 



87.5 



76 



STORMWATER MANAGEMENT SUMMARY 
ESSEX BAY 



TOWN BEVERLY 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


20 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.7 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


6 




SUSP. SOLIDS, LBS. 


75 




BOD5 

STORMWATER TREATMENT 


11 




TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 
POLLUTANTS DISCHARGED 




— 


SETT. SOLIDS, LBS. 




6 


SUSP. SOLIDS, LBS. 




75 


BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 




11 


BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.0 


SUSP. SOLIDS mg/1 




12.8 


BOD5 mg/1 
AFTER TREATMENT 




1.9 


SETT. SOLIDS mg/1 




1.0 


SUSP. SOLIDS mg/1 




12.8 


BOD5 mg/1 




1.9 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 86 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



77 



STORMWATER MANAGEMENT SUMMARY 
ESSEX BAY 



TOWN ESSEX 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1335 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 37.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 327 

SUSP. SOLIDS, LBS. 3900 
BOD 5 573 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 25.9 25.9 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 310.7 310.7 

SUSP. SOLIDS, LBS. 3510 2535 

BOD5, LBS. 487 229.2 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 16.3 16.3 

SUSP. SOLIDS, LBS. 390 1365 

BOD5, LBS. 86 343.8 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1 -° 1 -° 

SUSP. SOLIDS mg/1 12-4 12.4 

BOD5 mg/1 1-8 1.8 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.05 0.05 

SUSP. SOLIDS mg/1 1-2 4.3 

BOD5 mg/1 0.3 1.1 

TOTAL CAPITAL COST ($) 750,000 2,000,000 

ANNUAL O&M COST ($) 19,000 60,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 

REMOVED, LBS. 

% REMOVED 8 9.4 61.8 



4473 4473 
3997 2764.2 



CAPITAL COSTS/% REMOVAL ($) 8,4 00 32,400 



TREATMENT COST (C/100 gals 



11.7 32.9 



STORMWATER MANAGEMENT SUMMARY 
ESSEX BAY 



78 



TOWN 



GLOUCESTER 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/10 00 gals) 



2000 
303 

7.1 

56 
681 
100 



NT 


SP 


SMD 


- 


4.8 


4.8 


- 


67.6 


67.6 


_ 


53.2 


53.2 


- 


612.9 


442.6 


- 


85 


40 


56 


2.8 


2.8 


681 


68.1 


238.4 


100 


15 


60 


0.9 


0.9 


0.9 


11.5 


11.5 


11.5 


1.7 


1.7 


1.7 


0.9 


0.05 


0.05 


11.5 


1.1 


4.0 


1.7 


0.3 


1.0 


_ 


200,000 


950,000 


— 


5,000 


11,000 


781 


781 


781 


- 


697.9 


482.6 


- 


89.4 


61.8 


- 


22,000 


15,400 




16.5 


68.9 



STORMWATER MANAGEMENT SUMMARY 
ESSEX BAY 



79 



TOWN 



HAMILTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/10 gals) 



2000 
216 

6.3 

64 
768 
113 



NT 


SP 


SMD 


- 


4.3 


4.3 


— 


68.3 


68.3 


— 


60.8 


60.8 


- 


691.2 


499.2 


— 


96 


45.2 


64 


3.2 


3.2 


768 


76.8 


268.8 


113 


17 


67.8 


1.2 


1.2 


1.2 


14.6 


14.6 


14.6 


2.2 


2.2 


2.2 


1.2 


0.06 


0.06 


14.6 


1.5 


5.1 


2.2 


0.3 


1.3 


— 


200,000 


900,000 


— 


5,000 


10,000 


881 


881 


881 


- 


787.2 


544.4 


- 


89.4 


61.8 


- 


2200 


14,600 


. 


16.5 


72.5 



80 



STORMWATER MANAGEMENT SUMMARY 
CONCORD RIVER BASIN 



TOWN IPSWICH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 12 3 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 44 

SUSP. SOLIDS, LBS. 532 

BOD 5 78 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 44 

SUSP. SOLIDS, LBS. 532 

BOD5, LBS. . 78 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.5 

SUSP. SOLIDS mg/1 18.2 

BOD5 mg/1 2.7 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1-5 

SUSP. SOLIDS mg/1 18.2 

BOD5 mg/1 2.7 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 610 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/10 gals) 



81 



STORMWATER MANAGEMENT SUMMARY 
ESSEX BAY 



TOWN WENHAM 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


73 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


2.1 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


25 




SUSP. SOLIDS, LBS. 


298 




BOD 5 


44 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




25 


SUSP. SOLIDS, LBS. 




298 


BOD5, LBS. 




44 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.4 


SUSP. SOLIDS mg/1 




17.0 


BOD5 mg/1 




2.5 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.4 


SUSP. SOLIDS mg/1 




17.0 


BOD5 mg/1 




2.5 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 342 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (0/10 00 gals) 



82 



STORMWATER MANAGEMENT SUMMARY 
GLOUCESTER HARBOR 



TOWN GLOUCESTER 

URBAN DRAINAGE AREA 

YEAR 2 00 

ACRES 3092 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 91.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1169 
SUSP. SOLIDS, LBS. 13922 
BOD 5 2047 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 62.9 6 2.9 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 1110.5 1110.5 

SUSP. SOLIDS, LBS. 12529.8 9049.3 

BOD5, LBS. 1740 818.8 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 58.5 58.5 

SUSP. SOLIDS, LBS. 1392.2 4872.7 

BOD5, LBS. 307 1228.2 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.5 1.5 

SUSP. SOLIDS mg/1 18.2 18.2 

BOD5 mg/1 2.7 2.7 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.08 0.08 

SUSP. SOLIDS ma/1 1.8 6.4 

BOD5 mg/1 0.4 1.6 

TOTAL CAPITAL COST ($) 1,400,000 3,200,000 
ANNUAL O&M COST ($) 47,000 150,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 15969 15969 

REMOVED, LBS. 14269.8 9868.1 

% REMOVED 89. 4 61.8 

CAPITAL COSTS/% REMOVAL ($) 15,70 52,600 
TREATMENT COST (C/1000 gals) 9.5 24.7 



83 



STORMWATER MANAGEMENT SUMMARY 
GLOUCESTER HARBOR 



TOWN ROCKPORT 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 20 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 0.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 4 
SUSP. SOLIDS, LBS. 43 
BOD 5 6 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 4 

SUSP. SOLIDS, LBS. 43 

BOD5, LBS. 6 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.0 

SUSP. SOLIDS mg/1 10.3 

BOD5 mg/1 1.4 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1.0 

SUSP. SOLIDS mg/1 10.3 

BOD5 mg/1 1.4 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 49 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



84 



STORMWATER MANAGEMENT STUDY 
IPSWICH RIVER BASIN 



TOWN ANDOVER 

URBAN DRAINAGE AREA 

YEAR 2 00 

ACRES 547 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 13.5 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


113 






SUSP. SOLIDS, LBS. 


1358 






BOD5 


200 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




9.2 


9.2 


% TREATED 




68.2 


68.2 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




107.4 


107.4 


SUSP. SOLIDS, LBS. 




1222.2 


882.7 


BOD5, LBS. 




170 


80 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




5.6 


5.6 


SUSP. SOLIDS, LBS. 




135.8 


475.3 


BOD5, LBS. 




30 




AVG. POLLUTANT CONCENTRATK 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.0 


1.0 


SUSP. SOLIDS mg/1 




12.1 


12.1 


BOD5 mg/1 




1.8 


1.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.2 


4.2 


BOD5 mg/1 




0.3 


1.1 



TOTAL CAPITAL COST ($) 325,000 1,250,000 

ANNUAL O&M COST ($) 7,000 20,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


1558 


1558 


REMOVED, LBS. 




1392.2 


962.7 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 3,600 20,200 
TREATMENT COST (C/1000 gals) 14 - 2 49.7 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



85 



TOWN 



BEVERLY 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1517 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 49.0 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


664 








SUSP. SOLIDS, LBS. 


7889 








BOD 5 


1160 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




33.6 


33.6 


33.6 


% TREATED 




68.6 


68.6 


68.6 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




630.8 


630.8 


597.6 


SUSP. SOLIDS, LBS. 




7100.1 


5127.8 


3550 


BOD5, LBS. 




986 


464 


232 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




33.2 


33.2 


66.4 


SUSP. SOLIDS, LBS. 




788.9 


2761.2 


4339 


BOD5, LBS. 




174 


696 


928 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




1.6 


1,6 


1.6 


SUSP. SOLIDS mg/1 




19.3 


19.3 


19.3 


BOD5 mg/1 




2.8 


2.8 


2.8 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.08 


0.08 


0.2 


SUSP. SOLIDS mg/1 




1.9 


6.8 


10.6 


BOD5 mg/1 




0.4 


1.7 


2.3 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



875,000 2,250,000 5,000,000 
25,000 80,000 250,000 



SUSP. SOLIDS + BOD5 










BEFORE TREATMENT, 


LBS. 


9049 


9049 


9049 


REMOVED, LBS. 




8086.1 


5591.8 


3782 


% REMOVED 




89.4 


61.8 


41.8 



CAPITAL COSTS/ % REMOVAL ($ 



9,800 



36,400 120,000 



TREATMENT COST (C/100 gals) 



10.8 



29.2 



76.6 



86 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN BILLERICA 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


78 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


2.0 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


21 




SUSP. SOLIDS, LBS. 


249 




BOD 5 


37 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




21 


SUSP. SOLIDS, LBS. 




249 


BOD5, LBS. 




37 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.3 


SUSP. SOLIDS mg/1 




14.9 


BOD5 mg/1 




2.2 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.3 


SUSP. SOLIDS mg/1 




14.9 


BOD5 mg/1 




2.2 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 286 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



87 



STORMWATER MANAGEMENT STUDY 
IPSWICH RIVER BASIN 



TOWN B OXFORD 

URBAN DRAINAGE AREA 

YEAR 2 00 

ACRES 2524 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 67.1 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


498 






SUSP. SOLIDS, LBS. 


5950 






BOD 5 


874 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




46.0 


46.0 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




473.1 


473.1 


SUSP. SOLIDS, LBS. 




5355 


3867.5 


BOD5, LBS. 




742.9 


349.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




24.9 


24.9 


SUSP. SOLIDS, LBS. 




595 


2082.5 


BOD5, LBS. 




131.1 


524.4 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




0.9 


0.9 


SUSP. SOLIDS mg/1 




10.6 


10.6 


BOD5 mg/1 




1.6 


1.6 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.04 


0.04 


SUSP. SOLIDS mg/1 




1.1 


3.7 


BOD5 mg/1 




0.2 


0.9 



TOTAL CAPITAL COST ($) 1,125,000 2,750,000 
ANNUAL O&M COST ($) 35,000 110,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


6824 


6824 


REMOVED, LBS. 




6097.9 


4217.1 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 12,600 44,500 
TREATMENT COST (C/1000 gals) 10.2 26.8 



88 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN BURLINGTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1782 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 58.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 863 
SUSP. SOLIDS, LBS. 10286 
BOD 5 1512 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 39.8 39.8 

% TREATED 68.6 68.6 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 819.9 819.9 

SUSP. SOLIDS, LBS. 9257.4 6685.9 

BOD5, LBS. 1285.2 604.8 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 43.1 43.1 

SUSP. SOLIDS, LBS. 1028.6 3600.1 

BOD5, LBS. 226.8 907.2 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.8 1.8 

SUSP. SOLIDS mg/1 21.3 21.3 

BOD5 mg/1 3.1 3.1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.09 0.09 

SUSP. SOLIDS mg/1 2.1 7.4 

BOD5 mg/1 0.5 1.9 

TOTAL CAPITAL COST ($) 1,050,000 2,500,000 

ANNUAL O&M COST ($) 30,000 100,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 11798 11798 

REMOVED, LBS. 10542.8 7290.7 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 11,800 40,500 
TREATMENT COST (C/1000 gals) 10.4 27.8 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



89 



TOWN 



DAN VERS 



URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 92 4 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 31.4 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


681 








SUSP. SOLIDS, LBS. 


8138 








BOD 5 


1198 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




21.5 


21.5 


21.5 


% TREATED 




68.5 


68.5 


68.5 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




647 


647 


612.9 


SUSP. SOLIDS, LBS. 




7324.2 


5289.7 


3662.1 


BOD5, LBS. 




1018.3 


479.2 


239.6 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




34 


34 


68.1 


SUSP. SOLIDS, LBS. 




813.8 


2848.3 


4475.9 


BOD5, LBS. 




179.7 


718.8 


958.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




2.6 


2.6 


2.6 


SUSP. SOLIDS mg/1 




31.1 


31.1 


31.1 


BOD5 mg/1 




4.6 


4.6 


4.6 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.1 


0.1 


0.3 


SUSP. SOLIDS mg/1 




3.1 


10.9 


17.1 


BOD5 mg/1 




0.7 


2.7 


3.7 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



650,000 1,900,000 3,000,000 
17,000 55,000 150,000 



SUSP. SOLIDS -I- BOD5 










BEFORE TREATMENT, 


LBS. 


9336 


9336 


9336 


REMOVED, LBS. 




8342.5 


5768.9 


3901.7 


% REMOVED 




89.4 


61.8 


41.8 



CAPITAL COSTS/% REMOVAL ($) 



7,300 



30,700 



72,000 



TREATMENT COST (C/1000 gals) 



12.0 



34.5 



78.5 



90 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN HAMILTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2368 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 68.3 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


706 






SUSP. SOLIDS, LBS. 


8453 






BOD 5 


1243 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




46.8 


46.8 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




670.7 


670.7 


SUSP. SOLIDS, LBS. 




7607.7 


5494.5 


BOD5, LBS. 




1056.5 


497.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




35.3 


35.3 


SUSP. SOLIDS, LBS. 




845.3 


2958.5 


BOD5, LBS. 




186.5 


745.8 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.8 


14.8 


BOD5 mg/1 




2.2 


2.2 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.5 


5.2 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 1,125,000 2,750,000 

ANNUAL O&M COST ($) 35,000 110,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


9696 


9696 


REMOVED, LBS. 




8664.2 


5991.7 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 12,600 44,500 
TREATMENT COST (C/1000 gals) !0.2 26.8 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



91 



TOWN 



IPSWICH 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 3328 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 118 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRAT 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 



8 



1969 






23508 






3460 








SP 


SMD 




81.4 


81.4 




68.5 


68.5 




1870.5 


1870.5 




21157.2 


15280.2 




2941 


1384 




98.5 


98.5 




2350.8 


8827.8 


ONS 


519 


2076 




2.0 


2.0 




23.7 


23.7 




3.5 


3.5 




0.1 


0.1 




2.4 


8.3 




0.5 


2.1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,725,000 3,750,000 
61,000 195,000 



SUSP. SOLIDS 4- BOD5 








BEFORE TREATMENT, 


LBS. 


26968 


26968 


REMOVED, LBS. 




24098.2 


16664.2 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 



19,300 



60,700 



TREATMENT COST (C/1000 gals) 



9.0 



23.2 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



92 



TOWN 



LYNNFIELD 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 326 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 8.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 75 

SUSP. SOLIDS, LBS. 902 

BOD 5 133 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



NT 


SP 


SMD 


- 


5.9 


5.9 


— 


68.6 


68.6 


— 


71.2 


71.2 


- 


811.8 


586.3 


— 


113 


53.2 


75 


3.8 


3.8 


902 


90.2 


315.7 


133 


20 


79.8 


1.0 


1.0 


1.0 


12.6 


12.6 


12.6 


1.9 


1.9 


1.9 


1.0 


0.05 


0.05 


12.6 


1.3 


4.4 


1.9 


0.3 


1.1 


- 


225,000 


1,025,000 


— 


5,000 


15,000 


1035 


1035 


1035 


- 


924.8 


639.5 


- 


89.4 


61.8 



2,500 



16,600 



TREATMENT COST (C/1000 gals) 



15.8 



62.6 



STORMWATER MANAGEMENT STUDY 
IPSWICH RIVER BASIN 



93 



TOWN 



MIDDLETON 



URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 4165 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 158.' 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 2726 

SUSP. SOLIDS, LBS. 32498 

BOD 5 4 78 3 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 ma/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 



SP 

108.8 

68.6 

2589.7 
:9248.2 
4065.6 

136.3 

3249.8 

717.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2.1 

24.6 

3.6 

0.1 
2.5 
0.5 

2,150,000 
82,000 



37281 

33313.8 

89.4 

24,000 



8.6 



SMD 

108.8 

68.6 

2589.7 

21123.7 

1913.2 

136.3 

11374.3 

2869.8 



2.1 

24.6 

3.6 

0.1 
8.6 
2.2 

4,475,000 
255,000 



37281 

23036.9 

61.8 

72,400 
21.7 



94 



STORMWATER MANAGEMENT STUDY 
IPSWICH RIVER BASIN 



TOWN NORTH AND OVER 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 734 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 18.5 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


155 






SUSP. SOLIDS, LBS. 


1868 






BOD 5 


275 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




12.7 


12.7 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




147.2 


147.2 


SUSP. SOLIDS, LBS. 




1681.2 


1214.2 


BOD5, LBS. 




233.8 


110 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




7.8 


7.8 


SUSP. SOLIDS, LBS. 




186.8 


653.8 


BOD5, LBS. 




41.2 


165 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.0 


1.0 


SUSP. SOLIDS mg/1 




12.1 


12.1 


BOD5 mg/1 




1.8 


1.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.2 


4.2 


BOD5 mg/1 




0.3 


1.0 



TOTAL CAPITAL COST ($) 425,000 1,400,000 

ANNUAL O&M COST ($) 10,000 30,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


2143 


2143 


REMOVED, LBS. 




1915 


1324.2 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 4,800 22,700 
TREATMENT COST (C/1000 gals) !3.7 42.7 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



95 



TOWN 



NORTH READING 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2906 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


89.7 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1214 






SUSP. SOLIDS, LBS. 


14421 






BOD5 


2121 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




61.5 


61.5 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1153.3 


1153.3 


SUSP. SOLIDS, LBS. 




12978.9 


9373.6 


BOD5, LBS. 




1802.8 


848.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




60.7 


60.7 


SUSP. SOLIDS, LBS. 




1442.1 


5047.4 


BOD5, LBS. 




318.2 


1272.6 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.6 


1.6 


SUSP. SOLIDS mg/1 




19.3 


19.3 


BOD5 mg/1 




2.8 


2.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




1.9 


6.7 


BOD5 mg/1 




0.4 


1.7 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



1,375,000 3,200,000 
46,000 150,000 



16542 

14781.7 

89.4 

15,400 



16542 

10222 

61.8 

52,600 



TREATMENT COST (C/1000 gals 



9.6 



24.8 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



96 



TOWN 



PEABODY 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 12 8 6 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 34.2 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


450 








SUSP. SOLIDS, LBS. 


5392 








BOD 5 


793 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




23.5 


23.5 


23.5 


% TREATED 




68.7 


68.7 


68.7 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




427.5 


427.5 


405 


SUSP. SOLIDS, LBS. 




4852.8 


3504.8 


2426.4 


BOD5, LBS. 




674 


317.2 


158.6 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




22.5 


22.5 


45 


SUSP. SOLIDS, LBS. 




539.2 


1887.2 


2965.6 


BOD5, LBS. 




119.0 


475.8 


634.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




1.6 


1.6 


1.6 


SUSP. SOLIDS mg/1 




18.9 


18.9 


18.9 


BOD5 mg/1 




2.8 


2.8 


2.8 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.08 


0.08 


0.2 


SUSP. SOLIDS mg/1 




1.9 


6.6 


10.4 


BOD5 mg/1 




0.4 


1.7 


2.2 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



700,000 1,950,000 3,500,000 
18,000 55,000 175,000 



6185 

5526.8 

89.4 



6185 
3822 
61.8 



7,800 31,600 



6185 
2585 
41.8 

84,000 



TREATMENT COST (C/10 00 gals) 



11.9 



34.0 



75.4 



97 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN READING 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1045 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


32.0 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


445 






SUSP. SOLIDS, LBS. 


5311 






BOD 5 


780 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




22.0 


22.0 


% TREATED 




68.8 


68. 8 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




422.8 


422.8 


SUSP. SOLIDS, LBS. 




4779.9 


3452.2 


BOD5, LBS. 




663 


312 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




22.2 


22.2 


SUSP. SOLIDS, LBS. 




531.1 


1858.8 


BOD5, LBS. 




117 


468 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




19.9 


19.9 


BOD5 mg/1 




2.9 


2.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




2.0 


7.0 


BOD5 mg/1 




0.4 


1.8 



TOTAL CAPITAL COST ($) 650,000 1,900,000 

ANNUAL O&M COST ($) 17,000 55,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 6 91 609 * 



REMOVED, LBS. 



5442.9 3764.2 



% REMOVED 8 9.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 7,300 30,7 00 



TREATMENT COST (C/1000 gals) 



12.0 34.5 



98 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN TEWKSBURY 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 14 2 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 42 

SUSP. SOLIDS, LBS. 509 
BOD 5 7 5 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. . 42 

SUSP. SOLIDS, LBS. 509 

BOD5, LBS. 75 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.3 

SUSP. SOLIDS mg/1 16.1 

BOD5 mg/1 2.4 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1.3 

SUSP. SOLIDS mg/1 16.1 

BOD5 mg/1 2.4 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 584 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/100 -'lis) 



99 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN TOPSFIELD 

URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 3017 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 80.5 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


752 






SUSP. SOLIDS, LBS. 


7569 






BOD 5 


1114 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




55.2 


55.2 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




714.4 


714.4 


SUSP. SOLIDS, LBS. 




6812.1 


4919.9 


BOD5, LBS. 




946.9 


445.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




37.6 


37.6 


SUSP. SOLIDS, LBS. 




756.9 


2649.1 


BOD5, LBS. 




167.1 


668.4 


AVG. POLLUTANT CONCENTRATI 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




11.3 


11.3 


BOD5 mg/1 




1.7 


1.7 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.1 


3.9 


BOD5 mg/1 




0.2 


1.0 



TOTAL CAPITAL COST ($) 1,275,000 3,000,000 

ANNUAL O&M COST ($) 41,000 130,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


8683 


8683 


REMOVED, LBS. 




7759 


5365.5 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 14,300 48,500 
TREATMENT COST (C/1000 gals) 9.8 25.5 



100 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



TOWN WENHAM 

URBAN DRAINAGE AREA 

YEAR 2 000 

ACRES 1781 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 49.8 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


433 






SUSP. SOLIDS, LBS. 


5174 






BOD 5 


761 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




34.1 


34.1 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




411.4 


411.4 


SUSP. SOLIDS, LBS. 




4656.6 


3363.1 


BOD5, LBS. 




646.8 


304.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




21.6 


21.6 


SUSP. SOLIDS, LBS. 




517.4 


1810.9 


BOD5, LBS. 




114.2 


456.6 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.0 


1.0 


SUSP. SOLIDS mg/1 




12.4 


12.4 


BOD5 mg/1 




1.8 


1.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.2 


4.4 


BOD5 mg/1 




0.3 


1.1 



TOTAL CAPITAL COST ($) 875,000 2,250,000 

ANNUAL O&M COST ($) 25,000 80,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


5935 


5935 


REMOVED, LBS. 




5303.4 


3667.5 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 9,8 00 3 6,4 00 
TREATMENT COST (C/1000 gals) 10.8 29.2 



STORMWATER MANAGEMENT SUMMARY 
IPSWICH RIVER BASIN 



101 



TOWN 



WILMINGTON 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 4 797 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 181.5 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


3756 






SUSP. SOLIDS, LBS. 


44554 






BOD 5 


6550 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




124.5 


124.5 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




3568.2 


3568.2 


SUSP. SOLIDS, LBS. 




40098.6 


28960.1 


BOD5, LBS. 




5567.5 


2620 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




187.8 


187.8 


SUSP. SOLIDS, LBS. 




4455.4 


15593.9 


BOD5, LBS. 




982.5 


3930 


AVG. POLLUTANT CONCENTRATK 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




2.5 


2.5 


SUSP. SOLIDS mg/1 




29.4 


29.4 


BOD5 mg/1 




4.3 


4.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.9 


10.3 


BOD5 mg/1 




0.6 


2.6 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2,400,000 4,850,000 
93,000 290,000 



51104 51104 

45,666.1 31580.1 

89.4 61.8 



26,800 



78,500 



TREATMENT COST (C/1000 gals) 



.5 



21.0 



102 



STORMWATER MANAGEMENT SUMMARY 
CAPE ANN 
LOCAL NO. 1 



TOWN GLOUCESTER 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 83 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 21.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 229 

SUSP. SOLIDS, LBS. 2745 
BOD 5 404 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 15.0 15.0 

% TREATED 68.5 6 8.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 217.5 217.5 

SUSP. SOLIDS, LBS. 2470.5 1784.2 

BOD5, LBS. 343.4 161.6 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. H-5 11.5 

SUSP. SOLIDS, LBS. 274.5 960.8 

BOD5, LBS. 60 - 6 242.4 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1-3 1-3 

SUSP. SOLIDS mg/1 15.0 15.0 

BOD5 mg/1 2.2 2.2 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.06 0.06 

SUSP. SOLIDS ma/1 1.5 5.3 

0.3 1.3 



BOD5 mg/1 

TOTAL CAPITAL COST ($) 500,000 11,000 

ANNUAL O&M COST ($) 1,500,000 35,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 

REMOVED, LBS. 

% REMOVED 8 9.4 61.8 



3149 3149 
2813.9 1945.8 



CAPITAL COSTS/% REMOVAL ($) 5,600 24,300 

TREATMENT COST (C/1000 gals) 15.0 33.1 



103 



STORMWATER MANAGEMENT SUMMARY 
CAPE ANN 
LOCAL NO. 1 



TOWN ROCKPORT 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1689 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


53.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


742 






SUSP. SOLIDS, LBS. 


8856 






BOD5 


1302 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




36.5 


36.5 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




704.9 


704.9 


SUSP. SOLIDS, LBS. 




7970.4 


5756.4 


BOD5, LBS. 




1106.7 


520.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




37.1 


37.1 


SUSP. SOLIDS, LBS. 




885.6 


3099.6 


BOD5, LBS. 




195.3 


781.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




20.0 


20.0 


BOD5 mg/1 




2.9 


2.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




2.0 


7.0 


BOD5 mg/1 




0.4 


1.8 



TOTAL CAPITAL COST ($) 975,000 2,425,000 

ANNUAL O&M COST ($) 27,000 85,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


10158 


10158 


REMOVED , LBS . 




9077.1 


6277.2 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 10,900 39,200 

TREATMENT COST (C/1000 gals) 10.7 28.7 



STORMWATER MANAGEMENT SUMMARY 
MANCHESTER HARBOR AREA 
LOCAL NO. 2 



104 



TOWN 



BEVERLY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + 3OD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/10 gals) 



2000 
625 

19.0 

283 

3378 

497 



SP 
13.0 
68.4 

268.8 

3040.2 

442.5 

14.2 
337.8 

74.5 



1.8 

21.3 

3.1 

0.09 
2.1 
0.5 

425,000 
10,000 



3875 

3462.7 

89.4 

4,800 



13.7 



SMD 
13.0 
68.4 

268.8 

2195.7 

198.8 

14.2 

1182.3 

298.2 



1.8 

21.3 

3.1 

0.09 

7.5 
1.9 

1,400,000 
30,000 



3875 

2394.5 

61.8 

22,700 
14.7 



MD 

13.0 

68.4 

254.7 

1520.1 

99.4 

28.3 

1857.9 

397.6 



1 

21 

3 



0.2 

11.7 

2.5 



2,000,000 
100,000 



3875 

1619.5 

41.8 

48,000 



80.4 



STORMWATER MANAGEMENT SUMMARY 
MANCHESTER HARBOR AREA 
LOCAL NO. 2 



105 



TOWN 



GLOUCESTER 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
337 

9.2 



119 






1421 






209 








SP 


SMD 




6.3 


6.3 




68.5 


68.5 




113.0 


113.0 




1278.9 


923.6 




177.6 


83.6 




6 


6 




142.1 


497.4 




31.4 


125.4 




1.6 


1.6 




18.5 


18.5 




2.7 


2.7 




0.08 


0.08 




1.9 


6.5 




0.4 


1.6 




250,000 


1,050,000 




5,000 


14,000 




1630 


1630 




1456.5 


1007.2 




89.4 


61.8 




2,800 


17,000 




15.2 


59.2 



STORMWATER MANAGEMENT SUMMARY 
MANCHESTER HARBOR AREA 
LOCAL NO. 2 



106 



TOWN 



MANCHESTER 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/10 00 gals) 



2000 
2980 

78.4 

589 
7062 
1038 



SP 
53.7 
68.5 

559.5 

6355.8 

882.3 

29.5 
706.2 
155.7 



0.9 

10.8 

1.6 

0.05 
1.1 
0.2 

1.250,000 
39,000 



8100 

7238.1 

89.4 

14,000 



9.8 



SMD 
53.7 
68.5 

559.5 

4590.3 

415.2 

29.5 

2471.7 

622.8 



0.9 

10.8 

1.6 

0.C5 
3.8 
1.0 

2,900,000 
125,000 



8100 

5005.5 

61.8 

46,900 
25.7 



MD 

53.7 

68.5 

530.1 

3177.9 

207.6 

58.9 

3884.1 

830.4 



0.9 

10.8 

1.6 

0.1 
5.9 
1.3 

8,000,000 
400,000 



8100 

3385.5 

41.8 

191,000 
75.0 



107 



STORMWATER MANAGEMENT SUMMARY 
MANCHESTER HARBOR APFA 
LOCAL NO. 2 



TOWN WENHAM 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


72 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.8 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


23 




SUSP. SOLIDS, LBS. 


282 




BOD5 


41 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




23 


SUSP. SOLIDS, LBS. 




282 


BOD5, LBS. 




41 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.5 


SUSP. SOLIDS mg/1 




18.8 


BOD5 mg/1 




2.7 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.5 


SUSP. SOLIDS mg/1 




18.8 


POD5 mg/1 




2.7 



TOTAL CAPITAL COST (?) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 323 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
MARBLEHEAD HARBOR - LYNN HARBOR AREA 
LOCAL NO. 3 



108 



TOWN 



LYNN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals 



2000 
1739 

64.7 

1269 

15085 

2217 



SP 
44.4 
68.6 

1205.5 

13576.5 

1884.5 

63.5 

1508.5 

332.5 



2 

28 

4 


2 




1,100,000 
33,000 



17302 

15461.0 

89.4 

12,300 



10.2 



SMD 
44.4 
68.6 

1205.5 

9805.2 

886.8 

63.5 
5279.8 
1330.2 



2.4 

28.0 

4.1 

0.1 
9.8 
2.5 

2,650,000 
105,000 



17302 

10692.0 

61.8 

42,900 
27.0 



MD 

44.4 

68.6 

1142.1 

6788.2 

443.4 

126.9 
8296.8 
1773.6 



2.4 

28.0 

4.1 

0.2 

15.4 

3.3 

6,500,000 
325,000 



17302 

7231.6 

41.8 

156,000 
75.7 



109 



STORMWATER MANAGEMENT SUMMARY 
MARBLEHEAD HARBOR - LYNN HARBOR AREA 
LOCAL NO. 3 



TOWN MARBLEHEAD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1219 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 36.8 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 


493 






SUSP. SOLIDS, LBS. 


5890 






BOD5 


866 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




25.3 


25.3 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




468.4 


468.4 


SUSP. SOLIDS, LBS. 




5301 


3828.5 


BOD5, LBS. 




736.1 


346.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




24.6 


24.6 


SUSP. SOLIDS, LBS. 




589 


2061.5 


BOD5, LBS. 




129.9 


519.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.6 


1.6 


SUSP. SOLIDS mg/1 




19.2 


19.2 


BOD5 mg/1 




2.8 


2.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




1.9 


6.7 


BOD5 mg/1 




0.4 


1.7 



TOTAL CAPITAL COST ($) 740,000 2,050,000 

ANNUAL O&M COST ($) 19,000 60,000 

SUSP. SOLIDS f BOD5 

BEFORE TREATMENT, LBS. 6756 6756 

REMOVED, LBS. 6037.1 4174:9 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 8,300 33,200 

TREATMENT COST (C/1000 gals) 11.7 33.6 



110 



STORMWATER MANAGEMENT SUMMARY 
MARBLEHEAD HARBOR - LYNN HARBOR AREA 
LOCAL NO. 3 



TOWN NAHANT 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


417 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


12.8 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


183 






SUSP. SOLIDS, LBS. 


2192 






BOD5 


322 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




8.8 


8.8 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




173.8 


173.8 


SUSP. SOLIDS, LBS. 




1972.8 


1424.8 


BOD5, LBS. 




273.7 


128.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




9.2 


9.2 


SUSP. SOLIDS, LBS. 




219.2 


767.2 


BOD5, LBS. 




48.3 


193.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




20.5 


20.5 


BOD5 mg/1 




3.0 


3.0 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.1 


7.2 


BOD5 mg/1 




0.5 


1.8 



TOTAL CAPITAL COST ($) 325,000 1,250,000 

ANNUAL O&M COST ($) 7,000 24,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


2514 


2514 


REMOVED, LBS. 




2246.5 


1553.6 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 3,600 20,200 

TREATMENT COST (C/1000 gals) 14.3 53.8 



Ill 



STORMWATER MANAGEMENT SUMMARY 

MARBLEHEAD HARBOR - LYNN HARBOR AREA 

LOCAL NO. 3 



TOWN SWAMPSCOTT 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1023 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 34.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 648 

SUSP. SOLIDS, LBS. 7715 

BOD 5 1134 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 23.9 23.9 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 615.6 615.6 

SUSP. SOLIDS, LBS. 6943.5 5014.8 

BOD5, LBS. 963.9 453.6 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 32.4 32.4 

SUSP. SOLIDS, LBS. 771.5 2700.2 

BOD5, LBS. 170.1 680.4 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 2.2 2.2 

SUSP. SOLIDS mg/1 26.5 26.5 

BOD5 mg/1 3.9 3.9 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.1 0.1 

SUSP. SOLIDS mg/1 2.7 9.3 

BOD5 mg/1 0.6 2.3 

TOTAL CAPITAL COST ($) 700,000 1,950,000 

ANNUAL O&M COST ($) 18,000 55,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 8849 8849 

REMOVED, LBS. 7907.4 5468.4 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 7,800 31,600 

TREATMENT COST (C/1000 gals) H-9 33.8 



STORMWATER MANAGEMENT SUMMARY 

BOSTON HARBOR 

LOCAL NO. 4 



112 



TOWN 



REVERE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
339 

13.2 

283 

3361 

494 



30 

4 



SP 

9.0 

68.2 

268.8 

24.9 

19.9 

14.2 
36.1 
74.1 



2 
30 

4 


3 




325,000 
7,000 



3855 

3444.8 

89.4 

3,600 



SMD 

9.0 

68.2 

268.8 

2184.6 

197.6 

14.2 
1176.4 
296.4 



2 

30 

4 



10 

2 



1,250,000 
24,000 



3855 

2382.2 

61.8 

20,200 



TREATMENT COST (C/1000 gals) 



14.3 



52.6 



STORMWATER MANAGEMENT SUMMARY 

BOSTON HARBOR 

LOCAL NO. 4 



113 



TOWN 



WINTHROP 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
476 

18.0 

363 

4328 

637 



SP 
12.3 
68.3 

344.8 

3895.2 

541.5 

18.2 

432.8 

95.5 



2.4 

28.8 

4.2 



0.6 

400,000 
9,000 



4965 

4436.7 

89.4 

4,500 



SMD 
12.3 
68.3 

344.8 

2813.2 

254.8 

18.2 

1514.8 

382.2 



2.4 

28.8 

4.2 

0.1 

10.1 

2.5 



MD 
12.3 
68.3 

326.7 

1947.6 

127.4 

36.3 

2380.4 

509.6 



2.4 

28.8 

4.2 

0.2 

15.9 

3.4 



1,400,000 1,750,000 
30,000 88,000 



4965 
3068 
61.8 

22,700 



4965 
2075 
41.8 

42,000 



TREATMENT COST (C/1000 gals) 



13.7 



44.1 



80.9 



STORMWATER MANAGEMENT SUMMARY 
QUINCY BAY 
LOCAL NO. 6 



114 



TOWN 



MILTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/10 gals) 



2000 
222 

6.3 

82 
983 

144 



NT 


SP 


SMD 


- 


4.3 


4.3 


- 


68.3 


68.3 


— 


77.9 


77.9 


- 


884.7 


639 


- 


122.4 


57.6 


82 


4.1 


4.1 


983 


98.3 


344 


144 


21.6 


86.4 


1.6 


1.6 


1.6 


18.7 


18.7 


18.7 


2.7 


2.7 


2.7 


1.6 


0.08 


0.08 


18.7 


1.9 


6.5 


2.7 


0.4 


1.6 


_ 


200,000 


900,000 


— 


5,000 


10,000 


1127 


1127 


1127 


- 


1007.1 


696.6 


- 


89.4 


61.8 


- 


2,200 


14,600 


. 


16.5 


72.5 



STORMWATER MANAGEMENT SUMMARY 
QUINCY BAY 
LOCAL NO. 6 



115 



TOWN 



QUINCY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1802 

62.1 

1293 

15413 

2266 



SP 
42.6 
68.6 

1228.4 

13871.7 

1926.1 

64.6 

1541.3 

339.9 



2.5 

29.8 

4.4 



1,040,000 
31,000 



17679 

15797.8 

89.4 

11,600 



SMD 
42.6 
68.6 

1228.4 

10018.5 

906.4 

64.6 
5394 .5 
1359.6 



2.5 
29.8 

4.4 




10 

2 



MD 
42.6 
68.6 

1163.7 

6935.8 

453.2 

129.3 
8477.2 
1812.8 



2.5 
29.8 

4.4 





16 

3 



2,525,000 6,000,000 
100,000 300,000 



17679 

10924.9 

61.8 



17679 
7389 
41.8 



40,900 144,000 



TREATMENT COST (C/100 gals) 



10.2 



27.3 



75.8 



STORMWATER MANAGEMENT SUMMARY 
H INGHAM-HULL BAY LOCAL NO. 7 



116 



TOWN 



COHASSET 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
433 

12.3 



122 






1462 






215 








SP 


SMD 




8.4 


8.4 




68.3 


68.3 




115.9 


115.9 




1315.8 


950.3 




182.8 


86 




6.1 


6.1 




146.2 


511.7 




32.2 


129 




1.2 


1.2 




14.3 


14.3 




2.1 


2.1 




0.06 


0.06 




1.4 


5.0 




0.3 


1.3 




290,000 


1,200,000 




6,000 


18,000 




1677 


1677 




1498.6 


1036.3 




89.4 


61.8 



3,200 



19,400 



TREATMENT COST (C/1000 gals) 



14.3 



51.7 



STORMWATER MANAGEMENT SUMMARY 
HINGHAM HARBOR - HULL BAY 
LOCAL NO. 7 



117 



TOWN 



HINGHAM 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
4000 

119.1 



1601 






19089 






2807 








SP 


SMD 




81.7 


81.7 




68.6 


68.6 




1521 


1521 




17180.1 


12407.8 




2386 


1122.8 




80 


80 




1908.9 


6681.2 




421 


1684.2 




1.6 


1.6 




19.2 


19.2 




2.8 


2.8 




0.08 


0.08 




1.9 


6.7 




0.4 


1.7 


1. 


725,000 


3,750,000 




61,000 


195,000 




21896 


21896 




19566.1 


13530.6 




89.4 


61.8 




19,300 


60,700 




9.0 


23.2 



STORMWATER MANAGEMENT SUMMARY 
HINGHAM HARBOR-HULL BAY LOCAN NO. 7 



TOWN HULL 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 904 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2 9.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 7,100 29,900 

TREATMENT COST (C/1000 gals) 14 - 8 38 - 2 



661 






7896 






1161 








SP 


SMD 




20.3 


20.3 




68.6 


68.6 




628 


628 




7106.4 


5132.4 




986.8 


464.4 




33 


33 




789.6 


2763.6 




174.2 


696.6 




2.7 


2.7 




32.0 


32.0 




4.7 


4.7 




0.1 


0.1 




3.2 


11.2 




0.7 


2.8 




635,000 


1,850,000 




16,000 


55,000 




9057 


9057 




8093.2 


5596.8 




89.4 


61.8 



STORMWATER MANAGEMENT SUMMARY 
H INGHAM HARBOR - HULL BAY 
LOCAL NO. 7 



119 



TOWN 



NORWELL 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
174 

5.7 

72 
856 
126 



NT 


SP 


SMD 


- 


3.9 


3.9 


— 


68.4 


68.4 


— 


68.4 


68.4 


- 


770.4 


556.4 


- 


107.1 


50.4 


72 


3.6 


3.6 


856 


85.6 


299.6 


126 


18.9 


75.6 


1.5 


1.5 


1.5 


18.0 


18.0 


18.0 


2.7 


2.7 


2.7 


1.5 


0.08 


0.08 


18.0 


1.8 


6.3 


1.5 


0.4 


1.6 


— 


190,000 


800,000 


~ 


4,000 


10,000 


982 


982 


982 


- 


877.5 


606.8 


- 


89.4 


61.8 



2,100 



12,900 



TREATMENT COST (C/1000 gals) 



20.4 



72.2 



120 



STORMWATER MANAGEMENT SUMMARY 
H INGHAM HARBOR - HULL BAY 
LOCAL NO. 7 



TOWN ROCKLAND 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 107 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 21 

SUSP. SOLIDS, LBS. 258 

BOD 5 3 8 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 296 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (<yi000 gals) 



21 


258 


38 


1.1 


13.5 


2.0 


1.1 


13.5 


2.0 



STORMWATER MANAGEMENT SUMMARY 

H INGHAM HARBOR - HULL BAY 

LOCAL NO. 7 



TOWN 



WEYMOUTH 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/IOOO gals) 



2000 
274 

7.7 



88 






053 






155 








SP 


SMD 




5.3 


5.3 




68.8 


68.8 




83.6 


83.6 




947.7 


684.5 




131.8 


62 




4.4 


4.4 




105.3 


368.5 




23.2 


93 




1.4 


1.4 




16.4 


16.4 




2.4 


2.4 




0.07 


0.07 




1.6 


5.7 




0.4 


1.4 




200,000 


950,000 




5,000 


11,000 




1208 


1208 




1079.5 


746.5 




89.4 


61.8 




2,200 


15,400 




16.5 


62.4 



122 



STORMWATER MANAGEMENT SUMMARY 

COHASSET HARBOR - SCITUATE HARBOR 

LOCAL NO. 8 



TOWN COHASSET 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2633 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 73.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



657 






7871 






1158 








SP 


SMD 




50.1 


50.1 




68.6 


68.6 




624.2 


624.2 




7083.9 


5116.2 




984.3 


463.2 




32.8 


32.8 




787.1 


2754.8 




173.7 


694.8 




1.1 


1.1 




12.9 


12.9 




1.9 


1.9 




0.05 


0.05 




1.3 


4.5 




0.3 


1.1 


If 


200,000 


2,800,000 




38,000 


115,000 




9029 


9029 




8068.2 


5579.4 




89.4 


61.8 




13,400 


45,300 




10.0 


26.2 



STORMWATER MANAGEMENT SUMMARY 

COHASSET HARBOR - SCITUATE HARBOR 

LOCAL NO. 8 



123 



TOWN 



N ORWELL 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
170 

5.6 

71 
844 
124 



NT 


SP 


- 


3.8 


- 


67.9 


_ 


67.5 


- 


759.6 


- 


105.4 


71 


3.5 


844 


84.4 


124 


18.6 


0.8 


0.8 


9.0 


9.0 


1.3 


1.3 


0.8 


0.04 


9.0 


0.9 


1.3 


0.2 


_ 


190,000 


— 


4,000 


968 


968 


- 


865 


- 


89.4 


- 


2,100 




20.4 



SMD 

3.8 

67.9 

67.5 

548.6 

49.6 

3.5 

295.4 

74.4 



0.8 
9.0 
1.3 

0.04 
3.2 

0.8 

100,000 
10,000 



968 

598.2 

61.8 

12,900 
72.2 



124 



STORMWATER MANAGEMENT SUMMARY 

COHASSET HARBOR - SC ITU ATE HARBOR 

LOCAL NO. 8 



TOWN SCITUATE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 4938 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 131.7 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



1042 






12491 






1836 








SP 


SMD 




90.3 


90.3 




68.6 


68.6 




989.9 


989.9 




11241.9 


8119.2 




1560.6 


734.4 




52.1 


52.1 




1249.1 


4371.8 




275.4 


1101.6 




0.9 


0.9 




11.4 


11.4 




1.7 


1.7 




0.05 


0.05 




1.1 


4.0 




0.3 


1.0 


1, 


,875,000 


4,000,000 




68,000 


210,000 




14327 


14327 




12802.5 


8853.6 




89.4 


61.8 




21,000 


64,700 




8.8 


22.7 



STORMWATER MANAGEMENT SUMMARY 
GREEN HARBOR - DUXBURY BAY 
LOCAL NO. 9 



125 



TOWN 



DUXBURY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
3817 

104.4 

940 

11,252 

1,655 



SP 


SMD 


71.6 


71.6 


68.6 


68.6 


893 


893 


10,126.8 


7,313.8 


1,406.8 


662 


47 


47 


1,125.2 


3,938.2 


248.2 


993 


1.1 


1.1 


12.9 


12.9 


1.9 


1.9 


0.05 


0.05 


1.3 


4.5 


0.3 


1.1 



1,500,000 3,400,000 
52,000 165,000 



12,907 

11,533.6 

89.4 

16,800 



12,970 

7,975.8 

61.8 

55,000 



TREATMENT COST (C/1000 gals) 



9.2 



24.0 



STORMWATER MANAGEMENT SUMMARY 
GREEN HARBOR - DUXBURY BAY 
LOCAL NO. 9 



126 



TOWN MARSHFIELD 




URBAN DRAINAGE AREA 




YEAR 


2000 


ACRES 


1218 


TOTAL STORM RUNOFF VOL. 




MIL. GAL. 


37.0 


TOTAL STORMWATER POLLUTANTS 




SETT. SOLIDS, LBS. 


589 


SUSP. SOLIDS, LBS. 


5903 


BOD 5 


869 


STORMWATER TREATMENT 




TREAT. DESCRIP. 




VOLUME TREAT . , MG 




% TREATED 




POLLUTANT REMOVALS 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 




AFTER TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 





TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS +■ BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



SP 


SMD 


25.4 


25.4 


68.6 


68.6 


559.6 


559.6 


5,312.7 


3837 


738.6 


347.6 


29.4 


29.4 


590.3 


2066 


130.4 


521.4 


1.9 


1.9 


19.1 


19.1 


2.8 


2.8 


0.1 


0.1 


1.9 


6.7 


0.4 


1.7 



750,000 2,000,000 
19,000 60,000 



6772 

6051.3 

89.4 

8,400 
11.7 



6772 

4184.6 

61.8 

32,000 
33.0 



STORMWATER MANAGEMENT SUMMARY 
GREEN HARBOR - DUXBURY BAY 
LOCAL NO. 9 



127 



TOWN 



PEMBROKE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
317 

7.9 

52 

625 

92 



NT 


SP 
5.4 
68.4 


SMD 
5.4 

68.4 


■~ 


49.4 

562.5 

78.2 


49.4 

406.2 

36.8 


52 

625 
92 


2.6 

625 

13.8 


2.6 

218.8 

55.2 


0.8 
9.5 
1.4 


0.8 
9.5 
1.4 


0.8 
9.5 
1.4 


0.8 
9.5 
1.4 


0.8 
0.9 
0.2 


0.8 
3.3 
0.8 


- 


200,000 
5,000 


1,000,000 
15,000 


717 


717 

640.7 

89.4 


717 

443.0 

61.8 



2,200 



16,200 



TREATMENT COST (C/1000 gals 



19.5 



67.0 



128 



STORMWATER MANAGEMENT SUMMARY 
MERRIMACK RIVER BASIN 



TOWN BOXFORD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 175 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 27 

SUSP. SOLIDS, LBS. 324 

BOD 5 48 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) " 1,700 

TREATMENT COST (C/1000 gals) " 20 -° 



NT 


SP 


- 


2.9 


- 


67.4 


— 


25.7 


- 


291.6 


- 


40.8 


27 


1.3 


324 


32.4 


48 


7.2 


0.8 


0.8 


9.0 


9.0 


1.3 


1.3 


0.8 


0.04 


9.0 


0.9 


1.3 


0.2 


_ 


150,000 


- 


3,000 


372 


372 


- 


332.4 


- 


89.4 



STORMWATER MANAGEMENT SUMMARY 
MERRIMACK RIVER BASIN 



129 



TOWN 



CHELMSFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SFTT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
1088 

28.5 



321 










3845 










565 












SP 


SMD 




MD 




19.6 


19.6 




19.6 




68.8 


68.8 




68.8 




305 


305 




288.9 




3,460.5 


2,499.2 


1, 


,730.2 




480.2 


226 




113 




16 


16 




32.1 




384.5 


1,345.8 


2 t 


,114.8 




84.8 


339 




452 




1.4 


1.4 




1.4 




16.2 


16.2 




16.2 




2.4 


2.4 




2.4 




0.07 


0.07 




0.1 




1.6 


5.7 




8.9 




0.4 


1.4 




1.9 




625,000 


1,800,000 


3,000,000 




15,000 


50,000 


150,000 




4,410 


4,410 




4,410 




3,940.7 


2,725.2 


1 


,843.2 




89.4 


61.8 




41.8 



7,000 



29,100 



72,000 



TREATMENT COST (C/10 00 gals) 



12.5 



38.0 



78.5 



STORMWATER MANAGEMENT SUMMARY 
MERRIMACK RIVER BASIN 



130 



TOWN 



TEWKSBURY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
940 

31.8 



516 






6118 






900 








SP 


SMD 




21.8 


21.8 




68.6 


68.6 




490.2 


490.2 




5,406.2 


3,976.7 




765 


360 




25.8 


25.8 




611.8 


2,141.3 




135 


540 




1.9 


1.9 




23.1 


23.1 




3.4 


3.4 




0.1 


0.1 




2.3 


8.1 




0.5 


2.0 



650,000 1,900,000 
17,000 55,000 



7,018 

6,271.2 

89.4 

7,300 



7,018 

4336.7 

61.8 

30,700 



TREATMENT COST (C/1000 gals) 



12.0 



34.5 



131 



STORMWATER MANAGEMENT SUMMARY 
MERRIMACK RIVER BASIN 



TOWN WESTFORD 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


42 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.8 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


9 




SUSP. SOLIDS, LBS. 


108 




BOD5 


16 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




9 


SUSP. SOLIDS, LBS. 




108 


BOD 5/ LBS. 




16 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.3 


SUSP. SOLIDS mg/1 




16.2 


BOD5 mg/1 




2.4 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.3 


SUSP. SOLIDS mg/1 




16.2 


BOD5 mg/1 




2.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 124 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



132 



TOWN 



ARLINGTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATION! 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
2319 

79.6 



1493 








17,817 








2619 










SP 


SMD 


MD 




54.6 


54.6 


54.6 




68.6 


68.6 


68.6 




1418.4 


1418.4 


1343.7 




16035.3 


11,581.1 


8,017.7 




2226.1 


1047.6 


523.8 




74.6 


74.6 


149.3 




1781.7 


6235.9 


9799.3 


S 


392.9 


1571.4 


2095.2 




2.2 


2.2 


2.2 




26.8 


26.8 


26.8 




3.9 


3.9 


3.9 




0.1 


0.1 


0.2 




2.7 


9.4 


14.8 




0.6 


2.4 


3.2 


1, 


275,000 


3,000,000 


8,000,000 




41,000 


130,000 


400,000 




20,436 


20,436 


20,436 


18 


12,628.7 


.8541.5 




89.4 


61.8 


41.8 




14,300 


48,500 


191,000 



TREATMENT COST (C/1000 gals) 



9.8 



25.5 



75.0 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



133 



TOWN 



BELMONT 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATION! 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
1350 

44.4 



980 






,700 






1721 






SP 


SMD 


MD 


30.5 


30.5 


30.5 


68.7 


68.7 


68.7 


931 


931 


882 


10530 


7605 


5265 


1462.9 


688.4 


344.2 


49 


49 


98 


1170 


4095 


6435 


258.1 


1032.6 


1376.8 


2.6 


2.6 


2.6 


31.6 


31.6 


31.6 


4.6 


4.6 


4.6 


0.1 


0.1 


0.3 


3.2 


11.1 


17.4 


0.7 


2.8 


3.7 


850,000 


2,200,000 


4,500,000 


23,000 


70,000 


225,000 


13,421 


13,421 


13,421 


11,992.9 


8,293.4 


5,609.2 


89.4 


61.8 


41.8 


9,500 


34,600 


108,000 


11.2 


30.8 


77.0 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



134 



TOWN 



BURLINGTON 



URBAN DRAINAGE AREA 










YEAR 


2000 








ACRES 


615 








TOTAL STORM RUNOFF VOL. 










MIL. GAL. 


20.1 








TOTAL STORMWATER POLLUTANTS 










SETT. SOLIDS, LBS. 


308 








SUSP. SOLIDS, LBS. 


3647 








BOD5 


536 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




13.8 


13.8 


13.8 


% TREATED 




68.7 


68.7 


68.7 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




292.6 


292.6 


277.2 


SUSP. SOLIDS, LBS. 




3,282.3 


2,370.5 


1,641.1 


BOD5, LBS. 




455.6 


214.4 


107.2 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




15.4 


15.4 


30.8 


SUSP. SOLIDS, LBS. 




364.7 


1,276.5 


2,009.9 


BOD5, LBS. 




80.4 


321.6 


428.8 


AVG. POLLUTANT CONCENTRATIONS 










BEFORE TREATMENT 










SETT. SOLIDS mg/1 




1.8 


1.8 


1.8 


SUSP. SOLIDS mg/1 




21.8 


21.8 


21.8 


BOD5 mg/1 




3.2 


3.2 


3.2 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.09 


0.09 


0.2 


SUSP. SOLIDS mg/1 




2.2 


7.6 


12.0 


BOD5 mg/1 




0.5 


1.9 


2.6 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



480,000 1,500,000 2,000,000 
10,000 35,000 100,000 



SUSP. SOLIDS + BOD5 










BEFORE TREATMENT, 


LBS. 


4,183 


4,183 


4,183 


REMOVED, LBS. 




3,737.9 


2,584.9 


1,748.3 


% REMOVED 




89.4 


61.8 


41.8 



CAPITAL COSTS/% REMOVAL ($) 



5,400 



24,300 



48,000 



TREATMENT COST (C/1000 gals) 



13.5 



43.0 



83.0 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



135 



TOWN 



EVERETT 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
970 

39.7 



682 








7997 








1175 










SP 


SMD 


MD 




27.2 


27.2 


27.2 




68.5 


68.5 


68.5 




647.9 


647.9 


613.8 




7197.3 


5198 


3598.6 




998.7 


470 


235 




34.1 


34.1 


68.2 




799.7 


2799 


4398.4 




176.3 


705 


940 




2.1 


2.1 


2.1 




24.2 


24.2 


24.2 




3.5 


3.5 


3.5 




0.1 


0.1 


0.2 




2.4 


8.5 


13.2 




0.5 


2.1 


2.8 




750,000 


2,100,000 


4,000,000 




20,000 


65,000 


200,000 




9172 


9172 


9172 




8196 


5668 


3833.6 




89.4 


61.8 


41.8 




8,400 


34,000 


96,000 




11.5 


32.3 


77.3 



WASTEWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



136 



TOWN 



LEXINGTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
1825 

50.0 



592 








7088 








1042 










SP 


SMD 


MD 




34.2 


34.2 


34.2 




68.4 


68.4 


68.4 




562.4 


562.4 


532.8 




6379.2 


4607.2 


3189.6 




885.7 


416.8 


208.4 




29.6 


29.6 


59.2 




708.8 


2480.8 


3898.4 




156.3 


625.2 


833.6 




1.4 


1.4 


1.4 




17.0 


17.0 


17.0 




2.5 


2.5 


2.5 




0.07 


0.07 


0.1 




1.7 


5.9 


8.2 




0.4 


1.5 


2.0 




875,000 


2,250,000 


5,000,000 




25,000 


80,000 


250,000 




8,130 


8,130 


8,130 




7,264.9 


5,024.0 


3398.0 




89.4 


61.8 


41.8 




9,800 


36,400 


120,000 



TREATMENT COST (C/10 00 gals! 



10.8 



29.2 



76.6 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



137 



TOWN 



MALDEN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP, SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP, SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
1209 

44.9 

885 

10511 

1545 



SP 
30.8 
68.6 

840.8 
9459.9 
1312.2 

44.2 

1051.1 

231.8 



2 
28 

4 



0.1 
2.8 
0.6 



850,000 
23,000 



12,056 

10773.1 

89.4 

9,500 



11.2 



SMD 
30.8 
68.6 

840.8 

6832.2 

618 

44.2 

3678.8 

927 



2.4 

28.1 

4.1 

0.1 
9.8 
2.5 



MD 
30 
68 


.8 
.6 


796.5 

4730 

309 


88.5 
5781 
1236 


2. 
28. 

4. 


,4 

,1 

.1 


0. 

15. 

3. 


,2 

.4 
.3 



2,200,000 4,500,000 
70,000 225,000 



12,056 

7450.2 

61.8 

35,600 
30.8 



12,056 
5039 
41.8 

108,000 
76.8 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



138 



TOWN 



MEDFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
3062 

104.1 

1970 

23437 

3445 



1 

21, 

2 



SP 
71.1 
68.3 

871.5 
093.3 
928.3 



98 
1343 
516 



2.3 

27.0 

4.0 



1,500,000 
52,000 



26,882 

24021.6 

89.4 

16,800 



SMD 
71.1 
68.3 

1871.5 

15,234.1 

1378 

98.5 

8202.9 

2067 



2.3 

27.0 

4.0 

0.1 
9.4 
2.4 



MD 

71.1 

68.3 

1773 

10,546.7 

689 

197 

12,890.3 

2756 



2.3 
27.0 

4.0 

0.2 

14.8 

3.2 



3,400,000 10,500,000 
165,000 525,000 



26,882 

16,612.1 

61.8 

55,000 



26,882 

11,235.7 

41.8 

251,000 



TREATMENT COST (C/IOOO gals) 



9.2 



24.0 



74.2 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



139 



TOWN 



MELROSE 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1441 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 51.5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1012 

SUSP. SOLIDS, LBS. 12066 

BOD 5 1774 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



SP 
35.3 
68.5 

961.4 

10859.4 

1507.9 

50.6 

1206.6 

266.1 



2 
28 

4 


2 





925,000 
26,000 



13,840 

12,367.3 

89.4 

10,300 



10.8 



SMD 
35.3 
68.5 

961.4 

7842.9 

709.6 

50.6 
4223.1 
1064.4 



2.4 

28.1 

4.1 

0.1 
9.8 
2.5 

2,350,000 
85,000 



13,840 

8,552.5 

61.8 

38,000 



29.0 



MD 

35.3 

68.5 

910.8 

5429.7 

354.8 

101.2 
6636.3 
1419.2 



2.4 

28.1 

4.1 

0.2 

15.5 

3.3 

5,000,000 
250,000 



13,840 

5784.5 

41.8 

120,000 
76.4 



140 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



TOWN READING 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1321 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


42.3 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


623 






SUSP. SOLIDS, LBS. 


7410 






BOD 5 


1090 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




29.2 


29.2 


% TREATED 




69.0 


69.0 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




591.9 


591.9 


SUSP. SOLIDS, LBS. 




6,669 


4,816.5 


BOD5, LBS. 




926.5 


436 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




31.1 


31.1 


SUSP. SOLIDS, LBS. 




741 


2,593.5 


BOD5, LBS. 




163.5 


654 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.8 


1.8 


SUSP. SOLIDS mg/1 




21.0 


21.0 


BOD5 mg/1 




3.1 


3.1 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.1 


7.4 


BOD5 mg/1 




0.5 


1.8 



TOTAL CAPITAL COST ($) 775,000 2,100,000 

ANNUAL O&M COST ($) 21,000 65,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



8500 8500 
7595.5 5252.5 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 8,700 34,000 



TREATMENT COST (C/1000 gals) 



11.3 31.2 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



141 



TOWN SOMERVILLE 




URBAN DRAINAGE AREA 




YEAR 


2000 


ACRES 


962 


TOTAL STORM RUNOFF VOL. 




MIL. GAL. 


37.6 


TOTAL STORMWATER POLLUTANTS 




SETT. SOLIDS, LBS. 


756 


SUSP. SOLIDS, LBS. 
BOD 5 

STORMWATER TREATMENT 


8947 
1315 


TREAT. DE SCRIP. 




VOLUME TREAT . , MG 




% TREATED 




POLLUTANT REMOVALS 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD 5 , LBS « 




POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 
AFTER TREATMENT 




SETT, SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 





TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP, SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



SP 
25.8 
68.6 

718.2 
8052.3 
1117.7 

37.8 
894.7 
197.3 



2 
28 

4 


2 




750,000 
19,000 



10,262 
9170 
89.4 

8,400 



SMD 
25.8 
68.6 

718.2 

5815.6 

526 

37.8 

3131.4 

789 



2.4 

28.5 

4.2 

0.1 

10.0 

2.5 



MD 

25.8 

68.6 

680.4 

4026.2 

263 

75.6 

4920.8 

1052 



2.4 
28.5 

4.2 

0.2 

15.7 

3.4 



2,000,000 3,750,000 
60,000 187,500 



10,262 

6341.6 

61.8 

32,400 



10,262 

4289.2 

41.8 

90.000 



TREATMENT COST (C/10 gals) 



11.7 



33.0 



77.5 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



142 



TOWN 



STONEHAM 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT. , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
2206 

73.0 

1491 

17790 

2616 



SP 
50.2 
68.8 

1416.5 
16,011 
2223.6 

74.5 

1779 

392.4 



2 
29 

4 


2 




1,200,000 
37,000 



20,406 

18,234.6 

89.4 

13,400 



SMD 
50.2 
68.8 

1416.5 

11,563.5 

1046.4 

74.5 
6226.5 
1569.6 



2.4 
29.2 

4.3 

0.1 

10.2 

2.6 



MD 
50.2 

68.8 

1341.9 

1,005.5 

523.2 

149.1 
9784.5 
2092.8 



2.4 
29.2 

4.3 

0.2 

16.1 

3.4 



2,750,000 7,500,000 
110,000 375,000 



20,406 

12,609.9 

61.8 

44,500 



20,406 

8,528.7 

41.8 

180,000 



TREATMENT COST (C/1000 gals) 



9.9 



26.2 



75.3 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



143 



TOWN 



WAKEFIELD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
1147 

40.8 

826 
9848 
1448 



SP 
28.0 
68.6 



8, 

1 



784 
863 
230 



41.3 
984.8 
217.2 



2 
28 

4 


2 




760,000 
21,000 



11,296 

10,094 

89.4 

8,500 



SMD 
28.0 
68.6 

784.7 

6,401.2 

579.2 

41.3 

3446.8 

868.8 



2.4 

28.9 

4.3 

0.1 

10.1 

2.6 



MD 

28.0 

68.6 

743.4 

4,431.6 

289.6 

82.6 

5,416.4 

1158.4 



2.4 
28.9 

4.3 

0.2 

15.9 

3.4 



2,150,000 4,000,000 
70,000 200,000 



11,296 

6,980.4 
61.8 

34,800 



11,296 

4,721.2 

41.8 

96,000 



TREATMENT COST (C/100 gals) 



11.3 



31.5 



77.2 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



144 



TOWN 



WATERTOWN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT, SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 qals) 



2000 
316 

10.8 

221 

2625 

386 



SP 

7.4 

68.5 

210 

2362.5 

328.1 

11 

262.5 

57.9 



2 
29 

4 


2 




260,000 
5,000 



3,011 

2690.6 

89.4 

2,900 
15.0 



SMD 

7.4 

68.5 

210 

1706.3 

154.4 

11 
918.7 
231.6 



2.5 

29.1 

4.3 

0.1 

10.2 

2.6 



MD 
7.4 
68.5 

198.9 

1181.2 

77.2 

22.1 

1443.8 

308.8 



2.5 

29.1 

4.3 

0.2 

16.0 

3.4 



1,130,000 1,250,000 
19,000 63,000 



3,011 

1860.7 

61.8 

18,300 
56.0 



3,011 

1258.4 

41.8 

30,000 
85.0 



145 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



TOWN WILMINGTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 90 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 59 

SUSP. SOLIDS, LBS. 699 

BOD 5 103 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT SP 

VOLUME TREAT . , MG " 2.0 

% TREATED - 69.0 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. - 56 

SUSP. SOLIDS, LBS. - 629.1 

BOD5, LBS. " 87.6 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 59 3.0 

SUSP. SOLIDS, LBS. 699 69.9 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 



103 15.4 



SETT. SOLIDS mg/1 



2.4 2.4 



SUSP. SOLIDS mg/1 28 - 9 28 - 9 



BOD5 mg/1 
AFTER TREATMENT 
SETT. SOLIDS mg/1 
SUSP. SOLIDS mg/1 
BOD5 mg/1 



4.3 4.3 

2.4 0.1 
28.9 2.9 

4.3 0.6 



TOTAL CAPITAL COST ($) " 125,000 

ANNUAL O&M COST ($) " 2,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 



802 802 



REMOVED, LBS. " 716.7 

% REMOVED " 89 - 4 

CAPITAL COSTS/ % REMOVAL ($) " 1,4 00 

TREATMENT COST (C/1000 gals) " 23 *° 



WASTEWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



146 



TOWN 



WINCHESTER 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
, POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

EOD5 mg/1 

AFTER TREATMENT 
SETT, SOLIDS mg/1 



2000 
2435 

70.5 



AVG 



SUSP 
POD-, 



SOLIDS 
mg/ 1 



ma/1 



844 








10091 








1483 










SP 


SMD 


MD 




48.3 


48.3 


48.3 




68.5 


68.5 


68.5 




801.8 


801.8 


759.6 




9,081.9 


6559.1 


4541 




1260.5 


593.2 


296.6 




42.2 


42.2 


84.4 




1009.1 


3531.9 


5550 




222.5 


898.8 


1186.4 




1.4 


1.4 


1.4 




17.2 


17.2 


17.2 




2.5 


2.5 


2.5 




0.07 


0.07 


0.1 




1.7 


6.0 


9.4 




0.4 


1.5 


2.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



1,130,000 2,750,000 7,000,000 
35,000 110,000 350,000 



11,574 

10,342.4 

89.4 

11,500 



11,574 

7152.3 

61.8 

44,500 



11,574 

4837.6 

41.8 

167,000 



TREATMENT COST (C/1000 gals) 



10.0 



26.5 



75.4 



STORMWATER MANAGEMENT SUMMARY 
MYSTIC RIVER BASIN 



147 



TOWN 



WOBURN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
5362 

188.6 

3481 

41253 

6064 



SP 

129.4 

68.6 

3,307 

37,127.7 

5,154.4 

174 

4,125.3 

909.6 



2 
26 



3.9 

0.1 
2.6 
0.6 

2,500,000 
96,000 



47,317.0 

42,282.1 

89.4 

28,000 



SMD 

129.4 

68.6 

3,307 

26,814.5 

2,425.6 

174 

14,438.5 

3,638.4 



2 

26 

3 


9 
2 



MD 

129.4 
68.6 

3,132.9 

18,563.8 

1,212.8 

348.1 

22,689.2 

4,851.2 



2 

26 

3 



14 

3 



5,000,000 19,000,000 
300,000 950,000 



47,317.0 

29,240.1 

61.8 

80,900 



47,317.0 

19,776.6 

41.8 

455,000 



TREATMENT COST (C/1000 gais) 



8.4 



21.0 



73.0 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



148 



TOWN 



CANTON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


5311 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


172.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


2606 






SUSP, SOLIDS, LBS. 


30928 






BODs 


4547 






STORMWATER TREATMENT 








TREAT. DE SCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




116.4 


116.4 


% TREATED 




67.6 


67.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




2475.7 


2475.7 


SUSP. SOLIDS, LBS. 




27835.2 


20103.2 


BOD 5 , LBS. 




3865 


1818.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




130.3 


130.3 


SUSP, SOLIDS, LBS. 




3092.8 


10824.8 


BOD5, LBS. 




682 


2728.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.8 


1.8 


SUSP. SOLIDS mg/1 




21.5 


21.5 


BOD5 mg/1 




3.2 


3.2 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.2 


7.5 


BOD5 mg/1 




0.5 


1.9 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2,300,000 4,650,000 
87,000 275,000 



35475 35475 

31700.2 21922.0 

89.4 61.8 



25,700 



75,200 



TREATMENT COST (C/1000 gals) 



8.6 



21.3 



STCRMVJATFR MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



149 



TOWN 



D ED HAM 



URBAN DRAINAGE £REA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT, SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS « 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

ROD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
2024 

75.5 

1413 

16797 

2471 



SP 

51.8 
68.6 

1342.4 

15117.3 

2100.4 

70.6 

1679.7 

370.6 



2 
26 

3 


2 





1,245,000 
39,000 



19268 

17217.7 

89.4 

13,900 



SMD 
51.8 
68.6 

1342.4 

10918.1 

988.4 

70.6 
5878.9 
1482.6 



2.2 

26.7 

3.9 

0.1 
9.3 
2.4 



MD 
51.8 
68.6 

1271.7 

7558.6 

494.2 

141.3 
9238.4 
1976.8 



2.2 

26.7 
3.9 

0.2 

14.7 

3.1 



2,900,000 7,500,000 
120,000 375,000 



19268 19268 

11006.5 0052.8 

61.8 41.3 

46,900 180,000 



TREATMENT COST (C/10 00 gals) 



9.8 



25.9 



75.2 



150 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER EASIN 



TOWN DOVER 

URBAN DRAINAGE AREA 

YEAR 20 00 

ACRES 470 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 12.6 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 93 

SUSP. SOLIDS, LBS. 1117 

BODs 164 

STORMWATER TREATMENT 

TREAT- DE SCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 , LBS . 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BODq, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 3,000 2 0,200 

TREATMENT COST (C/1000 gals) 14.6 55.5 



SP 


SMD 


8.6 


8.6 


68.3 


68.3 


88.4 


88.4 


1005.3 


726 


139.4 


65.6 


4.6 


4.6 


111.7 


391 


24.6 


98.4 


0.9 


0.9 


10.6 


10.6 


1.6 


1.6 


0.04 


0.04 


1.1 


3.9 


0.2 


0.9 


275,000 


1,250,000 


7,000 


25,000 


1281 


1281 


1144.7 


791.6 


89.4 


61.8 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



151 



TOWN 



FOXBOROUGH 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT, SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
669 

20.0 

226 

2699 

397 



SP 
13.7 
68.5 



214 
2429 

337 

11 

269 

59 



1 

16 

2 



0.07 

1.6 

0.4 



SMD 
13.7 
68.5 



214 

1754 

158 

11 
944 
238 



1 

16 

2 



0.07 

5.7 

1.4 



480,000 1,500,000 
10,000 35,000 



3096 

2766.6 

89.4 

5,400 



3096 

1913.2 

61.8 

24,300 



TREATMENT COST (C/1000 gals) 



13.5 



43.0 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



152 



TOWN 



MEDFIELD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP, SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
570 

15.8 



142 






1701 






250 








SP 


SMD 




10.9 


10.9 




69.0 


69.0 




134.9 


134.9 




1530.9 


1105.7 




212.5 


100 




7.1 


7.1 




170.1 


595.3 




37.5 


150 




1.1 


1.1 




12.9 


12.9 




1.9 


1.9 




0.05 


0.05 




1.3 


4.5 




0.3 


1.1 




375,000 


1,350,000 




9,000 


30,000 




1951 


1951 




1743.4 


1205.7 




89.4 


61.8 



4,200 



21,800 



TREATMENT COST (C/10 00 gals 



14.0 



48.4 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



153 



TOWN 



MILTON 



URBAN D. RAIN AGE AREA 
YEAR 
AG RES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 
SFTT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5 
STORMWATER TREATMENT 
TREAT. DESGRIP. 
VOLUME TREAT . , MG 
% TREATED 
POLLUTANT REMOVALS 

SOLIDS, LBS. 
SOLIDS, LBS. 
LBS. 
DISCHARGED 



2000 
4551 

137.8 

1837 

21946 

3226 



SETT. 
SUSP. 
BOD5, 
POLLUTANTS 



SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 
SETT. SOLIDS mg/1 
SUSP. SOLIDS mg/1 
BOD 5 mg/1 
AFTER TREATMENT 
SETT, SOLIDS mg/1 
SUSP. SOLIDS mg/1 
BOr- mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS t 3OD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



SP 


SMD 


MD 


94.5 


94.5 


94.5 


68.6 


68.6 


68.6 


1745.2 


1745.5 


1653.3 


9751.4 


14264.9 


9875.7 


2742.1 


1290.4 


645.2 


91.8 


91.8 


183.7 


2194.6 


7681.1 


12070.3 


483.9 


1935.6 


2580.8 


1.6 


1.6 


1.6 


19.1 


19.1 


19.1 


2.8 


2.8 


2.8 


0.08 


0.08 


0.2 


1.9 


6.7 


10.5 


0.4 


1.7 


2.2 



1,925,000 4,100,000 14,000,000 
70,000 225,000 700,000 



25,172 

22493.5 

89.4 

21,500 



25,172 

15555.3 

61.8 

66,300 



25,172 

10520.9 

41.8 

335,000 



TREATMENT COST (C/1000 gals) 



8.8 



22.4 



73.6 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



154 



TOWN 



NORWOOD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS*. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

POD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



2000 
3971 

143.6 

2590 

30656 

4506 



SUSP. SOLIDS t BOD5 

BEFORE TREATMENT, 
REMOVED, LBS, 
% REMOVED 



LBS 



SP 
98.5 
68.6 

2460.5 

27590.4 

3830.1 

129.5 

3065.6 

675.9 



2.2 

25.6 
3.8 

0.1 
2.6 
0.6 

2,000,000 
73,000 



35162 

31420.5 

89.4 



SMD 
98.5 
68.6 

2460.5 

19926.4 

1802.4 

129.5 

10729.6 

2703.6 



2.2 

25.6 

3.8 

0.1 
9.0 
2.3 



MD 

98.5 

68.6 

2331 

13795.2 

901.2 

259 

16860.8 
3604.8 



2.2 

25.6 

3.8 

0.2 

14.1 

3.0 






4,200,000 14,500,000 
235,000 725,000 



CAPITAL COSTS/ % REMOVAL ($) 



22,400 



35162 

21728.8 

61.8 

68,000 



35162 

14696.4 

41.8 

347,000 



TREATMENT COST (C/1000 gals) 



8.8 



22.2 



73.5 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER 3ASIN 



155 



TOWN 



qui:icy 



URBAN DRAINAGE AREA 

YEAR 

ACP^S 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SFTT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
S TO RMJ T AT E R T RE ATME NT 

TREAT . DESCRIP . 

VOLUME TREAT. , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 , LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LPS. 

SUSP. SOLIDS, LBS. 

BCD 5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/ 1 

SUSP, solids mg/1 

BOD5 mg/1 

AFTER TREATMENT 
SFTT. SOLIDS mg/1 
SUSP. SOLIDS mg/1 
POD5 mg/1 

TOTAL CAPITAL COST (?) 
ANNUAL O&M COST ($) 

SUSP, SOLIDS * BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
915 

34.3 



eef 








7908 








1162 










SP 


SMD 


MD 




23.5 


23.5 


23.5 




68.5 


68.5 


68.5 




632.7 


6 32.7 


599.4 




7117.2 


5140.2 


3553.8 




987.7 


464.8 


232.4 




33.3 


3 3.3 


66.6 




790. n 


7 7 * 7 . 8 


4340.? 




174.3 


697.2 


929.6 




2.3 


2.3 


2.3 




27.6 


27.6 


27.6 




4.1 


4.1 


4.1 




0.1 


0.1 


0.2 




2.8 


9.7 


15.2 




0.6 


2.4 


3.2 




700,000 


1,950,000 


3,500,000 




18,000 


55,000 


175,000 




9070 


9070 


9070 




8104.9 


5605 


3791.2 




89.4 


61.8 


41.8 




7,800 


31,600 


84,000 




11.9 


34.0 


75.4 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



156 



TOWN 



RANDOLPH 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SFTT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

EOD5 
STORMWATER TREATMENT 

TREAT. DE SCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP, SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SFTT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
167 

4.3 

48 
579 

85 



- 


2.9 


— 


67.4 


- 


45.6 


- 


521.1 


— 


72.2 


48 


2.4 


579 


57.9 


85 


12.8 


1.3 


1.3 


16.1 


16.1 


2.4 


2.4 


1.3 


0.07 


16.1 


1.6 


2.4 


0.4 


— 


150,000 


— 


3 f 000 


664 


664 


- 


593.3 


— 


89.4 


- 


1,700 


20.0 


20.0 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



157 



TOWN 



SHARON 



3346 

31080 

4317 

176 

3453 

761 



1 

18 

2 



SMD 

156.5 

68.6 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 5754 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 228.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 3523 

SUSP. SOLIDS, LBS. 34534 

BOD 5 5079 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP 

VOLUME TREAT., MG 156.5 

% TREATED 6 8.6 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.09 

SUSP. SOLIDS mg/1 1.8 

BOD5 mg/1 0.4 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 39,613 39,613 

REMOVED, LBS, 35,397.8 244 78.7 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 33,000 91,400 



3346 

22447 

2031 

176 

12,086 

3047 



1.9 

.8.1 

2.7 

0.09 

6.4 

1.6 



2,950,000 5,650,000 
115,000 365,000 



TREATMENT COST (C/1000 gals) 



8.4 



20.2 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



158 



TOWN 



STOUGHTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT. , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LES. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP, SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS t BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
3364 

119.5 

2342 

27822 

4091 



SP 
79.2 
68.6 



2224 

25039 

3477 



117.1 

2782.2 

613.6 



2 
27 

4 


2 





SMD 
79.2 
68.6 



2224 

18084 

1636 

117 
9737 



2454.6 



2 
27 

4 


9 
2 



1,700,000 3,650,000 
59,000 190,000 



31913 31913 

28517.2 19720.7 

89.4 61.8 



19,000 



59,000 



TREATMENT COST (C/10 gals) 



9.0 



23.3 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



159 



TOWN 



WALPOLE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DE SCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS, 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSPc SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($') 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
5075 

157.0 

2025 

24063 

3538 



SP 

106.6 

68.5 



1923 

21656 

3007 

101 

2406 

530 



1.5 

18.4 

2.7 

0.08 

1.8 

0.4 

2,100,000 
78,000 



27601 

24663.4 

89.4 

23,500 



SMD 

106.6 

68.5 

1923.8 

15641 

1415.2 

101.2 

8422 

2122.8 



1 

18 

2 



0.0: 

6.4 

1.6 

4,440,000 
250,000 



27601 

17056.2 

61.8 

71,200 



TREATMENT COST (C/1000 gals) 



8.7 



21.8 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



160 



'TOWN 



WESTWOOD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SFTT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BO.D5 
STORMWATER TREATMENT 

TREAT. DE SCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOB 5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS r BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS, 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
3079 

96.9 

1293 

15357 

2258 



SP 
66.4 
68.5 

1228.3 

13821.3 

1919.3 



64 

1535 

338 



1.6 

19.0 

2.8 

0.08 

1.9 

0.4 

1,400,000 
50,000 



17615 

15740.6 

89.4 

15,700 



SMD 
66.4 
68.5 

1228.3 

9982 

903.2 

64.7 

5375 

1354.8 



1 

19 

2 


6 

1 



6 

8 

08 

7 
7 



3,350,000 
160,000 



17615 

10885.2 

61.8 

54,200 



TREATMENT COST (C/10 gals) 



9.4 



24.4 



161 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN ABINGTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 462 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 15.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 4,200 21,800 

TREATMENT COST (C/1000 gals) 14.0 50.0 



165 






934 






284 








SP 


SMD 




10.5 


10.5 




68.6 


68.6 




156.8 


156.8 




1740.6 


1257.1 




241.4 


113.6 




8.2 


8.2 




193.4 


676.9 




42.6 


170.4 




1.3 


1.3 




15.2 


15.2 




2.2 


2.2 




0.06 


0.06 




1.5 


5.3 




0.3 


1.3 




375,000 


1,350,000 




9,000 


30,000 




2218 


2218 




1982 


1370.7 




89.4 


61.8 



162 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN DUXBURY 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


48 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.6 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


23 




SUSP. SOLIDS, LBS. 


271 




BOD5 


40 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




23 


SUSP. SOLIDS, LBS. 




271 


BOD5, LBS. 




40 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.7 


SUSP. SOLIDS mg/1 




20.3 


BOD5 mg/1 




3.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.7 


SUSP. SOLIDS mg/1 




20.3 


BOD5 mg/1 




3.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 311 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



163 



TOWN 



HANOVER 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


4415 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


138.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1404 






SUSP. SOLIDS, LBS. 


16684 






BOD 5 


2453 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




94.3 


94.3 


% TREATED 




68.3 


68.3 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1333.8 


1333.8 


SUSP. SOLIDS, LBS. 




15015.6 


10844.6 


BOD5, LBS. 




2085 


981.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




70.2 


70.2 


SUSP. SOLIDS, LBS. 




1668.4 


5839.4 


BOD5, LBS. 




368 


1471.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.5 


14.5 


BOD5 mg/1 




2.1 


2.1 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.4 


5.1 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,925,000 4,100,000 
70,000 225,000 



SUSP. SOLIDS +■ BOD5 








BEFORE TREATMENT, 


LBS. 


19137 


19137 


REMOVED, LBS. 




17100.6 


11825.8 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



21,500 



66,300 



TREATMENT COST (C/1000 gals) 



8.8 



22.4 



164 



STORMWATER MANAGEMENT SUMMARY 
NEPONSET RIVER BASIN 



TOWN HANSON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1661 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


42.6 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


419 






SUSP. SOLIDS, LBS. 


5039 






BOD 5 


741 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




29.2 


29.2 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




398 


398 


SUSP. SOLIDS, LBS. 




4535.1 


3275.4 


BOD5, LBS. 




629.9 


296.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




21 


21 


SUSP. SOLIDS, LBS. 




503.9 


1763.6 


BOD5, LBS. 




111.1 


444.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.2 


14.2 


BOD5 mg/1 




2.1 


2.1 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.4 


5.0 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 800,000 2,175,000 

ANNUAL O&M COST ($) 22,000 70,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 5780 5780 

REMOVED, LBS. 5165 3571.8 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 8,900 35,200 

TREATMENT COST (C/1000 gals) 11.3 31.3 



165 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN MARS HF I ELD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2108 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


58.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


635 






SUSP. SOLIDS, LBS. 


7590 






30D 5 


1116 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




39.9 


39.9 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




603.2 


603.2 


SUSP. SOLIDS, LBS. 




6831 


4933.5 


BOD5, LBS. 




948.6 


446.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




31.8 


31.8 


SUSP. SOLIDS, LBS. 




759 


2656.5 


BOD5, LBS. 




167.4 


669.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.3 


1.3 


SUSP. SOLIDS mg/1 




15.6 


15.6 


BOD5 mg/1 




2.3 


2.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.6 


5.5 


BOD5 mg/1 




0.3 


1.4 



TOTAL CAPITAL COST ($) 1,050,000 2,500,000 

ANNUAL O&M COST ($) 30,000 100,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 8706 8706 

REMOVED, LBS. 7779.6 5379.9 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 11,800 40,500 

TREATMENT COST (C/1000 gals) 10.4 27.8 



166 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN NORWELL 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2839 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


81.6 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


814 






SUSP. SOLIDS, LBS. 


9714 






BOD 5 


1428 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




55.9 


55.9 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 




) 




SETT. SOLIDS, LBS. 




773.3 


773.3 


SUSP. SOLIDS, LBS. 




8742.6 


6314.1 


BOD5, LBS. 




1213.8 


571.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




40.7 


40.7 


SUSP. SOLIDS, LBS. 




971.4 


3399.9 


BOD5, LBS. 




214.2 


856.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.3 


14.3 


BOD5 mg/1 




2.1 


2.1 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.4 


5.0 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 1,275,000 3,000,000 

ANNUAL O&M COST ($) 42,000 130,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 11142 11142 

REMOVED, LBS. 9956.4 6885.3 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 14,30 4 8,500 

TREATMENT COST (C/1000 gals) 9.8 25.5 



167 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN PEMBROKE 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2931 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


84.7 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


792 






SUSP. SOLIDS, LBS. 


9440 






BOD 5 


1388 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




58.0 


58.0 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




752.4 


752.4 


SUSP. SOLIDS, LBS. 




8496 


6136 


BOD5, LBS. 




1179.8 


555.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




39.6 


39.6 


SUSP. SOLIDS, LBS. 




944 


3304 


BOD5 , LBS . 




208.2 


832.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




13.4 


13.4 


BOD5 mg/1 




2.0 


2.0 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.3 


4.7 


BOD5 mg/1 




0.3 


1.2 



TOTAL CAPITAL COST ($) 1,300,000 3,100,000 

ANNUAL O&M COST ($) 44,000 140,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 10828 10828 

REMOVED, LBS. 9675.8 6691.2 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 14,500 50,200 

TREATMENT COST (C/1000 gals) 9.7 25.2 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



168 



TOWN 



ROCKLAND 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2076 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


66.5 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1044 






SUSP. SOLIDS, LBS. 


12439 






BOD5 


1830 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




45.5 


45.5 


% TREATED 




68.4 


68.4 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




991.8 


991.8 


SUSP. SOLIDS, LBS. 




11195.1 


8085.3 


BOD5, LBS. 




1555.5 


732 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




52.2 


52.2 


SUSP. SOLIDS, LBS. 




1243.9 


4353.7 


BOD5 , LBS . 




274.5 


1098 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.9 


1.9 


SUSP. SOLIDS mg/1 




22.4 


22.4 


BOD5 mg/1 




3.3 


3.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.2 


7.8 


BOD5 mg/1 




0.5 


2.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,100,000 2,650,000 
33,000 105,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


14269 


14269 


REMOVED, LBS. 




12750.6 


8817.3 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 



12,300 



42,900 



TREATMENT COST (0/1000 gals) 



10.2 



26.9 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



169 



TOWN 



SCITUATE 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


721 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


22.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


239 






SUSP. SOLIDS, LBS. 


2844 






BOD 5 


418 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




15.3 


15.3 


% TREATED 




68.9 


68.9 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




227 


227 


SUSP. SOLIDS, LBS. 




2559.6 


1848.6 


BOD5, LBS. 




355.3 


167.2 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




12.0 


12.0 


SUSP. SOLIDS, LBS. 




284.4 


995.4 


BOD5, LBS. 




62.7 


250.8 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.3 


1.3 


SUSP. SOLIDS mg/1 




15.4 


15.4 


BOD5 mg/1 




2.3 


2.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.5 


5.4 


BOD5 mg/1 




0.3 


1.4 


TOTAL CAPITAL COST ($) 




500,000 


1,500,000 


ANNUAL O&M COST ($) 




10,000 


35,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



3262 3262 

2914.9 2015.8 

89.4 61.8 



5,600 



24,300 



TREATMENT COST (C/1000 gals) 



13.1 



38.7 



170 



STORMWATER MANAGEMENT SUMMARY 
NORTH RIVER BASIN 



TOWN WEYMOUTH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 169 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 36 

SUSP. SOLIDS, LBS. 367 

BOD 5 54 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 1,700 

TREATMENT COST (C/1000 gals) - 20.0 



NT 


SP 

2.8 

66.7 


_ 


34.2 

330.3 

45.9 


36 

367 

54 


1.8 

36.7 

8.1 


1.5 

15.7 

2.3 


1.5 

15.7 

2.3 


1.5 

15.7 

2.3 


0.08 

1.6 

0.3 


- 


150,000 
3,000 


421 


421 

376.2 

89.4 



171 



STORMWATER MANAGEMENT SUMMARY 
PARKER RIVER BASIN 



TOWN BOXFORD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 551 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 13.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 84 

SUSP. SOLIDS, LBS. 1015 

BOD 5 149 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) - 3,600 

TREATMENT COST (C/1000 gals) - 14.3 



NT 


SP 


- 


9.1 


- 


68.4 


— 


79.8 


- 


913.5 


- 


126.7 


84 


4.2 


1015 


101.5 


149 


22.3 


0.8 


0.8 


9.2 


9.2 


1.3 


1.3 


0.8 


0.04 


9.2 


0.9 


1.3 


0.2 


— 


325,000 


■" 


7,000 


1164 


1164 


- 


1040.2 


- 


89.4 



172 



STORMWATER MANAGEMENT SUMMARY 
PARKER RIVER BASIN 



TOWN IPSWICH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 127 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 3.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 45 

SUSP. SOLIDS, LBS. 539 

BOD 5 79 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



NT 


SP 


- 


2.5 


- 


67.6 


— 


42.8 


- 


485.1 


— 


67.2 


45 


2.2 


539 


53.9 


79 


11.8 


1.4 


1.4 


17.0 


17.0 


2.5 


2.5 


1.4 


0.07 


17.0 


1.7 


2.5 


0.4 


— 


150,000 


™ 


3,000 


618 


618' 


- 


552.3 


- 


89.4 


- 


1,700 


M 


20.0 



STORMWATER MANAGEMENT SUMMARY 
ROWLEY RIVER BASIN 



TOWN 



IPSWICH 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1649 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


58.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


955 






SUSP. SOLIDS, LBS. 


11412 






BOD 5 


1680 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




39.9 


39.9 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




907.2 


907.2 


SUSP. SOLIDS, LBS. 




10270.8 


7417.8 


BOD5, LBS. 




1428 


672 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




47.8 


47.8 


SUSP. SOLIDS, LBS. 




1141.2 


3994.2 


BOD5, LBS. 




252 


1008 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




2.0 


2.0 


SUSP. SOLIDS mg/1 




23.6 


23.6 


BOD5 mg/1 




3.5 


3.5 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.4 


8.2 


BOD5 mg/1 




0.5 


2.1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,050,000 2,500,000 
30,000 120,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


13092 


13092 


REMOVED, LBS. 




11,698.8 


8,089.8 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



11,800 



40,800 



TREATMENT COST (C/1000 gals) 



10.4 



27.8 



174 



STORMWATER MANAGEMENT SUMMARY 
SALEM HARBOR 



TOWN LYNN 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


60 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.4 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


13 




SUSP. SOLIDS, LBS. 


162 




BOD 5 


24 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




13 


SUSP. SOLIDS, LBS. 




162 


BOD5, LBS. 




24 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.1 


SUSP. SOLIDS mg/1 




13.9 


BOD5 mg/1 




2.1 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.1 


SUSP. SOLIDS mg/1 




13.9 


BOD5 mg/1 




2.1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 186 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



175 



STORMWATER MANAGEMENT SUMMARY 
SALEM HARBOR 



TOWN MARBLEHEAD 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 58 2 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 18.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 24 3 

SUSP. SOLIDS, LBS. 2900 

BOD 5 426 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 12.3 12.3 

% TREATED 68.3 68.3 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 230.8 230.8 

SUSP. SOLIDS, LBS. 2610 1885 

BOD5, LBS. 362.1 170.4 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 12.2 12.2 

SUSP. SOLIDS, LBS. 290 1015 

BOD5, LBS. 63.9 255.6 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.6 1.6 

SUSP. SOLIDS mg/1 19.3 19.3 

BOD5 mg/1 2.8 2.8 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.08 0.0: 

SUSP. SOLIDS mg/1 1.9 6.8 

BOD5 mg/1 0.4 1.7 

TOTAL CAPITAL COST ($) 400,000 1,450,000 

ANNUAL O&M COST ($) 10,000 35,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 3 326 332 6 

REMOVED, LBS. 2972.1 2055.4 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 4,500 2 3,500 

TREATMENT COST (C/1000 gals) 13.7 47.0 



STORMWATER MANAGEMENT SUMMARY 
SALEM HARBOR 



176 



town 



SALEM 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS * BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
992 

39.9 

855 

10121 

1488 



SP 
27.4 
68.7 

812.3 
9108.9 
1264.8 

42.7 

1012.1 

223.2 



2.6 

30.4 

4.5 

0.1 
3.0 
0.7 

1,050,000 
30,000 



11609 

10373.7 

89.4 

11,800 



10.4 



SMD 
27.4 
68.7 

812.3 

6578.6 

595.2 

42.7 

3542.4 

892.8 



2.6 

30.4 

4.5 

0.1 

10.6 

2.7 

2,500,000 
120,000 



11609 

7173.8 

61.8 

40,500 
27.8 



177 



STORMWATER MANAGEMENT SUMMARY 
SALEM HARBOR 



TOWN SWAMPSCOTT 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 143 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 5.0 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 65 

SUSP. SOLIDS, LBS. 756 

BOD 5 111 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) - 2,100 

TREATMENT COST (C/1000 gals) " 20 » 4 



NT 


SP 


- 


3, 


.5 


— 


70 


— 


61, 


.8 


- 


680, 


.4 


- 


94, 


.4 


65 


3, 


.2 


756 


75, 


.6 


111 


16, 


.6 


1.6 


1, 


.6 


18.1 


18, 


,1 


2.7 


2, 


.7 


1.6 


0, 


.08 


18.1 


1, 


.8 


2.7 


0, 


.4 


— 


190,000 


•■ 


4,000 


867 


867 


- 


774, 


.8 


- 


89. 


.4 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



178 



TOWN 



EVERETT 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
325 

7.9 

131 

1572 

231 



NT 


SP 


SMD 


- 


5.4 


5.4 


- 


68,4 


68.4 


_ 


124.5 


117.9 


- 


1414.8 


1021.8 


- 


196.4 


92.4 


131 


6.5 


13.1 


1572 


157.2 


550.2 


231 


34.6 


138.6 


2.0 


2.0 


2.0 


23.9 


23.9 


23.9 


3.5 


3.5 


3.5 


2.0 


0.1 


0.2 


23.9 


2.4 


8.3 


3.5 


0.5 


2.1 


_ 


200,000 


1,000,000 


— 


5,000 


15,000 


1803 


1803 


1803 


- 


1611.2 


1114.2 


- 


89.4 


61.8 


- 


2,200 


16,200 


. 


16.0 


67.0 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



179 



TOWN 



LYNN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1305 

47.3 

946 

11211 

1648 



SP 


SMD 


MD 


32.5 


32.5 


32.5 


68.7 


68.7 


68.7 


898.7 


898.7 


851.4 


10089.9 


7287.2 


5045 


1400.8 


659.2 


329.6 


47.3 


47.3 


94.6 


1121.1 


3923.8 


6166 


247.2 


988.8 


1318.4 


2.4 


2.4 


2.4 


28.4 


28.4 


28.4 


4.2 


4.2 


4.2 


0.1 


0.1 


0.2 


2.8 


9.9 


15.6 


0.6 


2.5 


3.3 



875,000 2,250,000 4,600,000 
24,000 80,000 230,000 



12859 

11490.7 

89.4 

9,800 



12859 

7946.4 

61.8 



1285!) 

5374.6 

41.8 



36,400 110,000 



TREATMENT COST (C/1000 gals) 



11.0 



29.5 



75.9 



180 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



TOWN LYNNFIELD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2605 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


74.4 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


665 






SUSP. SOLIDS, LBS. 


7922 






BOD 5 


1165 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




51.1 


51.1 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




631.8 


631.8 


SUSP. SOLIDS, LBS. 




7129.8 


5149.3 


BOD5, LBS. 




990.2 


466 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




33.2 


33.2 


SUSP. SOLIDS, LBS. 




792.2 


2772.7 


BOD5, LBS. 




174.8 


699 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




12.8 


12.8 


BOD5 mg/1 




1.9 


1.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.3 


4 .5 


BOD5 mg/1 




0.3 


1.1 



TOTAL CAPITAL COST ($) 1,225,000 2,800,000 

ANNUAL O&M COST ($) 38,000 115,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



9087 9087 
8120 5615.3 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 13,700 45,300 



TREATMENT COST (C/1000 gals) 9 * 8 26 '° 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



181 



TOWN 



MALDEN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 








877 








29.7 








551 








6544 








962 










SP 


SMD 


MD 




20.4 


20.4 


20.4 




68.7 


68.7 


68.7 




523.5 


523.5 


495.9 




5889.6 


4253.6 


2944.8 




817.7 


384.8 


192.4 




27.5 


27.5 


55.1 




654.4 


2290.4 


3599.2 




144.3 


577.2 


769.6 




2.2 


2.2 


2.2 




26.4 


26.4 


26.4 




3.9 


3.9 


3.9 




0.1 


0.1 


0.2 




2.6 


9.2 


14.5 




0.6 


2.3 


3.1 



635,000 1,850,000 3,000,000 
16,000 55,000 150,000 



7506 


7056 


7506 


6707.3 


4638.4 


3137.2 


89.4 


61.8 


41.8 



7,100 



29,900 



72,000 



TREATMENT COST (C/1000 gals) 



14.8 



38.2 



78.6 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



182 



TOWN 



MELROSE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BODr mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

EOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
593 

19.4 

348 

4160 

611 



SP 


SMD 


13.3 


13.3 


68.6 


68.6 


330.6 


330.6 


3744 


2704 


519.4 


244.4 


17.4 


17.4 


416 


1456 


91.6 


366.6 


2.2 


2.2 


25.7 


25.7 


3.8 


3.8 


0.1 


0.1 


2.6 


9.0 


0.6 


2.3 



34.! 

2281 

488.: 



450,000 1,475,000 2,000,001 
10,000 35,000 100,001 






4771 

4263.4 

89.4 

5,000 



4771 

2948.4 

61.8 

23,900 



TREATMENT COST (C/1000 gals) 



13.5 



43.0 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



183 



TOWN 



READING 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 






1581 






51.5 






736 






8760 






1288 








SP 


SMD 




35.3 


35.3 




68.5 


68.5 




699.2 


699.2 




7884 


5694 




1094.8 


515.2 




36.8 


36.8 




876 


3066 




193.2 


772.8 




1.7 


1.7 




20.4 


20.4 




3.0 


3.0 




0.09 


0.09 




2.0 


7.1 




0.4 


1.8 




925,000 


2,350,000 




26,000 


85,000 




10,048 


10,048 




8978.8 


6209.2 




89.4 


61.8 



10,300 



38,000 



TREATMENT COST ($/1000 gals) 



10.8 



29.0 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



184 



TOWN 



REVERE 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1538 

52.8 

1005 

11953 

1757 



SP 


SMD 


36.3 


36.3 


68.8 


68.8 


954.8 


954.8 


10757.7 


7769.5 


1493.5 


702.8 


50.2 


50.2 


1195.3 


4183.5 


263.5 


1054.2 


2.3 


2.3 


27.1 


27.1 


4.0 


4.0 


0.1 


0.1 


2.7 


9.5 


0.6 


2.4 



925,000 2,350,000 5,500,000 
26,000 85,000 275,000 



13710 13710 

12251.2 8472.3 

89.4 61.8 

10,300 38,000 132,000 



TREATMENT COST (C/1000 gals) 



10.8 



33.9 



76.4 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



185 



TOWN 



SAUGUS 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 








3064 








103.8 








2155 








25657 








3773 










SP 


SMD 


MD 




71.1 


71.1 


71.1 




68.5 


68.5 


68.5 




2047.3 


2047.3 


1939.5 




23091.3 


16677 


11545.6 




3207 


1509.2 


754.6 




107.7 . 


107.7 


215.5 




2565.7 


8980 


14111.4 




566 


2263.8 


3018.4 




4.8 


4.8 


4.8 




29.6 


29.6 


29.6 




4.4 


4.4 


4.4 




0.1 


0.1 


0.2 




3.0 


10.4 


16.3 




0.7 


2.6 


3.5 



1,500,000 3,400,000 10,500,000 
52,000 165,000 525,000 



29,430 

26298.3 

89.4 

16,800 



29,430 

18186.2 

61.8 

55,000 



29,430 

12,300.2 

41.8 

251,000 



TREATMENT COST (C/1000 gals) 



9.2 



24.0 



74.3 



STORMWATER MANAGEMENT SUMMARY 
SAUGUS RIVER BASIN 



186 



TOWN 



WAKEFIELD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
1806 

54.2 

903 

10770 

1583 



SP 


SMD 


MD 


37.1 


37.1 


37.1 


68.5 


68.5 


68.5 


857.9 


857.9 


812.7 


9693 


7000.5 


4846.5 


1345.5 


633.2 


316.6 


45.1 


45.1 


90.3 


1077 


3769.5 


5923.5 


237.5 


949.8 


1266.4 


2.0 


2.0 


2.0 


23.8 


23.8 


23.8 


3.5 


3.5 


3.5 


0.1 


0.1 


0.2 


2.4 


9.3 


13.1 


0.5 


2.1 


2.8 



950,000 2,450,000 5,500,000 
28,000 90,000 275,000 



12353 


12353 


12353 


038.5 


7633.7 


5163.1 


89.4 


61.8 


41.8 



10,600 



39,600 132,000 



TREATMENT COST (C/1000 gals) 



10.7 



28.5 



76.3 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



187 



TOWN 



ANDOVER 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


7291 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


195.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


2003 






SUSP. SOLIDS, LBS. 


23924 






BOD 5 


3516 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




133.8 


133.8 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1902.8 


1902.8 


SUSP. SOLIDS, LBS. 




21531.6 


15550.6 


BOD5, LBS. 




2988.6 


1406.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




100.2 


100.2 


SUSP. SOLIDS, LBS. 




2392.4 


8373.4 


BOD5 , LBS . 




527.4 


2109.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.7 


14.7 


BOD5 mg/1 




2.2 


2.2 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.5 


5.1 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



2,600,000 5,100,000 
100,000 320,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


27440 


27440 


REMOVED, LBS. 




24520.2 


16957 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 



29,100 



82,500 



TREATMENT COST (C/1000 gals) 



8.4 



20.8 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



188 



TOWN 



BEDFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DE SCRIP. 

VOLUME TREAT. , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMFNT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

ROD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
4710 

178.0 

3643 

43359 

6380 



SP 

122 

68.5 

3460.8 

39023.1 

5423 

182.2 

4335.9 

957 



2.5 

29.2 

4.3 

0.1 
2.9 
0.6 



SMD 

122 

68.5 

3460.8 

28183.4 

2552 

182.2 

15175.6 

3828 



2.5 
29.2 

4.3 

0.1 

10.2 

2.6 



2,325,000 4,750,000 
89,000 280,000 



49739 

44446.1 

89.4 

26,000 



49739 
30735.4 

61.8 
76,900 



TREATMENT COST (C/1000 gals) 



8.5 



21.2 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



189 



TOWN 



BILLERICA 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3096 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


90.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1142 






SUSP. SOLIDS, LBS. 


13570 






BOD 5 


1995 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




61.0 


61.0 


% TREATED 




67.7 


67.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1084.9 


1084.9 


SUSP. SOLIDS, LBS. 




12213 


8820.5 


BOD5, LBS. 




1695.8 


798 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




57.1 


57.1 


SUSP. SOLIDS, LBS. 




1357 


4749.5 


BOD5, LBS. 




299.2 


1197 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.5 


1.5 


SUSP. SOLIDS mg/1 




18.1 


18.1 


BOD5 mg/1 




2.7 


2.7 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.08 


SUSP. SOLIDS mg/1 




1.8 


6.3 


BOD5 mg/1 




0.4 


1.6 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,350,000 3,100,000 
44,000 140,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


15565 


15565 


REMOVED, LBS. 




13908.8 


9618.5 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



15,100 



50,200 



TREATMENT COST (C/1000 gals 



9.6 



24.9 



190 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN BURLINGTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 4000 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 144.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 2405 

SUSP. SOLIDS, LBS. 28485 

BOD 5 4189 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT., MG 99.3 99.3 

% TREATED 68.5 68.5 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 2284.7 2284.7 

SUSP. SOLIDS, LBS. 25636.5 18515.2 

BOD5, LBS. 3560.6 1675.6 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 120.3 120.3 

SUSP. SOLIDS, LBS. 2848.5 9969.8 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 



628.4 2513.4 



SETT. SOLIDS mg/1 



2.0 2.0 



SUSP. SOLIDS mg/1 23.6 23.6 

ROD5 mg/1 3.5 3.5 
£FTFR TPFATMFNT 

SFTT. SOLIDS mg/1 0.1 0.1 

SUSP. SOLIDS mg/1 ?.4 8.2 
POD5 ir.g/i 



0.5 2.1 



TOTAL CAFITAL COST ($) 2,000,000 4,200,000 

ANNUAL OS.M COST ($) 73,000 235,000 

SUSP. SOLIDS - BOD5 

BEFORE TREATMENT, LBS. 32674 32674 

REMOVED, LBS. 29197.1 20190.8 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 22,400 68,000 

TREATMENT COST (C/1000 gals) 8.8 23.2 






191 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN CONCORD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


343 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


16.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


193 






SUSP. SOLIDS, LBS. 


2217 






BOD 5 


326 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




11.1 


11.1 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




183.4 


183.4 


SUSP. SOLIDS, LBS. 




1995.3 


1441 


BOD5, LBS. 




277.1 


130.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




9.6 


9.6 


SUSP. SOLIDS, LBS. 




221.7 


776 


BOD5, LBS. 




48.9 


195.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.4 


1.4 


SUSP. SOLIDS mg/1 




16.4 


16.4 


BOD5 mg/1 




2.4 


2.4 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.6 


5.7 


BOD5 mg/1 




0.4 


1.5 



TOTAL CAPITAL COST ($) 375,000 1,350,000 

ANNUAL O&M COST ($) 9,000 30,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


2543 


2543 


REMOVED, LBS. 




2272.4 


1571.4 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 4,200 21,800 

TREATMENT COST (C/1000 gals) 14.0 50.0 



192 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN LAWRENCE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 548 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 14.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATM.ENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

POD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS * BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 3,900 21,000 

TREATMENT COST (C/1000 gals) 14.3 49.7 



251 






2988 






439 








SP 


SMD 




10.1 


10.1 




68.2 


68.2 




238.5 


238.5 




2689.2 


1942.2 




373.2 


175.6 




12.5 


12.5 




298.8 


1045.8 




65.8 


263.4 




2.0 


2.0 




24.2 


24.2 




3.6 


3.6 




0.1 


0.1 




2.4 


8.5 




0.5 


2.1 




350,000 


1,300,000 




8,000 


25,000 




3427 


3427 




3062.4 


2117.8 




89.4 


61.8 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



193 



TOWN 



LEXINGTON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3235 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


91.9 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1132 






SUSP. SOLIDS, LBS. 


13505 






BOD 5 


1986 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




63.0 


63.0 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1075.4 


1075.4 


SUSP. SOLIDS, LBS. 




12154.5 


8778.2 


BOD5, LBS. • 




1688.1 


794.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




56.6 


56.6 


SUSP. SOLIDS, LBS. 




1350.5 


4726.8 


BOD5, LBS. 




297.9 


1191.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.5 


1.5 


SUSP. SOLIDS mg/1 




17.6 


17.6 


BOD5 mg/1 




2.6 


2.6 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.8 


6.2 


BOD5 mg/1 




0.4 


1.6 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



1,400,000 3,200,000 
47,000 150,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


15491 


15491 


REMOVED, LBS. 




13842.6 


9572.6 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



15,700 



51,800 



TREATMENT COST (C/1000 gals) 



9.5 



24.7 



194 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN LINCOLN 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


740 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


28.0 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


260 






SUSP. SOLIDS, LBS. 


3058 






BOD5 


449 






STORMWATER TREATMENT 








TREAT. DE SCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




19.2 


19.2 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




247 


247 


SUSP. SOLIDS, LBS. 




2752.2 


1987.7 


BOD5, LBS. 




381.6 


179.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




13 


13 


SUSP. SOLIDS, LBS. 




305.8 


1070.3 


BOD5, LBS. 




67.4 


269.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




13.1 


13.1 


BOD5 mg/1 




1.9 


1.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.3 


4.6 


BOD5 mg/1 




0.3 


1.2 



TOTAL CAPITAL COST ($) 625,000 1,800,000 

ANNUAL O&M COST ($) 15,000 50,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 3507 3507 

REMOVED, LBS. 3133.8 2167.3 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 7,000 29,100 

TREATMENT COST (C/1000 gals) 12.5 38.0 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



195 



TOWN 



NORTH ANDOVER 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


907 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


24.7 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


264 






SUSP. SOLIDS, LBS. 


3160 






BOD 5 


464 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




16.9 


16.9 


% TREATED 




68.4 


68.4 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




250.8 


250.8 


SUSP. SOLIDS, LBS. 




2844 


2054 


BOD5, LBS. 




394.4 


185.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




13.2 


13.2 


SUSP. SOLIDS, LBS. 




316 


1106 


BOD5, LBS. 




69.6 


278.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.3 


1.3 


SUSP. SOLIDS mg/1 




15.3 


15.3 


BOD5 mg/1 




2.3 


2.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.5 


5.4 


BOD5 mg/1 




0.3 


1.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/10 gals) 



550,000 1,650,000 
13,000 40,000 



3624 

3238.4 

89.4 

6,200 
12.8 



3624 

2239.6 

61.8 

26,700 
38.9 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



196 



TOWN 



TEWKSBURY 



URBAN DRAINAGE £REA 

YEAR 2000 

ACRES 3854 

TOTAL STORM RUNOFF VOL. 

JUL. GAL. 119.1 

TOTAL STORMWATER POLLUTANTS 

SFTT. SOLIDS, LBS. 1677 

SUSP. SOLIDS, LBS. 19946 

BOD 5 2933 

STORMWATER TREATMENT 

TREAT . DESCRIP . 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMFNT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SFTT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 



SP 
81.6 
68.5 

1593.2 

17951.4 

2493 

83.8 

1994.6 

440 



1.7 



20 
3 


2 





1 


08 



4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS r BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



1,725,000 
61,000 



22875 

20444.4 

89.4 

19,300 



SMD 
81.6 
68.5 

1593.2 

12964.9 

1173.2 

83.8 
6981.1 
1759.8 



1 

20 

3 



0.08 

7.0 

1.8 

3,750,000 
195,000 



22875 

14138.2 

61.8 



60,700 



TREATMENT COST (C/1000 gals) 



9.0 



23.2 



197 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN WILMINGTON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


421 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


14.3 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


262 






SUSP. SOLIDS, LBS. 


3129 






BOD 5 


460 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




9.9 


9.9 


% TREATED 




69.2 


69.2 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




248.9 


248.9 


SUSP. SOLIDS, LBS. 




2816.1 


2033.8 


BOD5, LBS. 




391 


184 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




13-. 1 


13.1 


SUSP. SOLIDS, LBS. 




312.9 


1095.2 


BOD5, LBS. 




69 


276 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 




2.2 


2.2 


SETT. SOLIDS mg/1 




2.2 


2.2 


SUSP. SOLIDS mg/1 




26.2 


26.2 


BOD5 mg/1 




3.9 


3.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.6 


9.2 


BOD5 mg/1 




0.6 


2.3 



TOTAL CAPITAL COST ($) 350,000 1,300,000 

ANNUAL O&M COST ($) 8,000 25,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 3589 3589 

REMOVED, LBS. 3207.1 2217.8 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 3,900 21,000 

TREATMENT COST (C/1000 gals) 14.3 49.7 



198 



STORMWATER MANAGEMENT SUMMARY 
SHAWSHEEN RIVER BASIN 



TOWN WOBURN 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


34 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.8 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


8 




SUSP. SOLIDS, LBS. 


92 




BOD 5 


14 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




8 


SUSP. SOLIDS, LBS. 




92 


BOD5, LBS. 




14 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




13.8 


BOD5 mg/1 




2.1 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




13.8 


BOD5 mg/1 




2.1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 106 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 






199 



STORMWATER MANAGEMENT SUMMARY 
SOUTH RIVER BASIN 



TOWN DUXBURY 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


452 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


13.1 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


149 






SUSP. SOLIDS, LBS. 


1772 






BOD5 


261 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




9.0 


9.0 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




141.5 


141.5 


SUSP. SOLIDS, LBS. 




1594.8 


1151.8 


BOD5, LBS. 




221.8 


104.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




7.5 


7.5 


SUSP. SOLIDS, LBS. 




177.2 


620.2 


BOD5, LBS. 




39.2 


156.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.4 


1.4 


SUSP. SOLIDS mg/1 




16.2 


16.2 


BOD5 mg/1 




2.4 


2.4 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.6 


5.7 


BOD5 mg/1 




0.4 


1.4 



TOTAL CAPITAL COST ($) 325,000 1,250,000 

ANNUAL O&M COST ($) 7,000 20,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 



2033 2033 
1816.6 1256.2 



89.4 61.8 
CAPITAL COSTS/% REMOVAL ($) 3,600 20,800 



TREATMENT COST (C/1000 gals) 



14.3 50.8 



STORMWATER MANAGEMENT SUMMARY 
SOUTH RIVER BASIN 



200 



TOWN 



MARSHFIELD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3125 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


85.5 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


919 






SUSP. SOLIDS, LBS. 


10984 






BOD 5 


1615 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




58.6 


SMD 


% TREATED 




68.5 


SMD 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




873 


873 


SUSP. SOLIDS, LBS. 




9885.6 


7139.6 


BOD5, LBS. 




1372.7 


646 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




46 


46 


SUSP. SOLIDS, LBS. 




1098.4 


3844.4 


BOD5, LBS. 




242.2 


969 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.3 


1.3 


SUSP. SOLIDS mg/1 




15.4 


15.4 


BOD5 mg/1 




2.3 


2.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.5 


5.4 


BOD5 mg/1 




0.3 


1.4 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS 1- BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



1,300,000 3,000,000 
43,000 140,000 



12,599 

11,258.3 

89.4 

14,500 



12,599 

7,795.6 

61.8 

48,500 



TREATMENT COST (C/1000 gals) 



9.7 



25.1 



201 



STORMWATER MANAGEMRNT SUMMARY 
SOUTH RIVER BASIN 



74 



TOWN SCITUATE 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 157 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 4 « 5 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 42 

SUSP. SOLIDS, LBS. 5 ?1 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. . 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/10 00 gals) 



NT 


SP 


- 


3.1 


- 


68.9 


_ 


39.9 


- 


450.9 


- 


62.9 


42 


2.1 


501 


50.1 


74 


11.1 


1.1 


1.1 


13.3 


13.3 


2.0 


2.0 


1.1 


0.06 


13.3 


1.3 


2.0 


0.3 


— 


150,000 


— 


3,000 


575 


575 


- 


513.8 


- 


89.4 


- 


1,700 




20.0 



202 



STORMWATER MANAGEMENT SUMMARY 
STONY BROOK BASIN 



TOWN BOXBOROUGH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 512 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 12.4 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



166 

1986 

292 








SP 

8.5 

68.5 


SMD 

8.5 

68.5 




157.7 

1787.4 

248.2 


157.7 

1290.9 

116.8 




8.3 

198.6 

43.8 


8.3 
695.1 
175.2 




1.6 

19.2 

2.8 


1.6 

19.2 

2.8 




0.08 
1.9 
0.4 


0.08 
6.7 
1.7 




3Q0,000 
6,000 


1,225,000 
20,000 




2278 

2035.6 

89.4 


2278 

1407.7 

61.8 




3,400 


19,800 




14.3 


52.9 



STORMWATER MANAGEMENT SUMMARY 
STONY BROOK BASIN 



203 



TOWN 



CHELMSFORD 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
1633 

46.5 



576 








6871 








1010 










SP 


SMD 


MD 




31.9 


31.9 


31.9 




68.6 


68.6 


68.6 




547.2 


547.2 


518.4 




6183.9 


4466.2 


3092 




858.5 


404 


202 




28.8 


28.8 


57.6 




687.1 


2404.8 


3779 




151.5 


606 


808 




1.5 


1.5 


1.5 




17.7 


17.7 


17.7 




2.6 


2.6 


2.6 




0.07 


0.07 


0.1 




1.8 


6.2 


9.7 




0.4 


1.6 


2.1 




850,000 


2,250,000 


4,700,000 




23,000 


80,000 


230,000 




7881 


7881 


7881 




7042.4 


4870.2 


3294 




89.4 


61.8 


41.8 




9,500 


36,400 


112,000 



TREATMENT COST (C/100 gals) 



11.0 



30.0 



76.9 



204 



STORMWATER MANAGEMENT SUMMARY 
STONY BROOK BASIN 



TOWN HARVARD 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


126 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


2.7 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


22 




SUSP. SOLIDS, LBS. 


264 




BOD5 


39 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




22 


SUSP. SOLIDS, LBS. 




264 


BOD5, LBS. 




39 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.0 


SUSP. SOLIDS mg/1 




11.7 


BOD5 mg/1 




1.7 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.0 


SUSP. SOLIDS mg/1 




11.7 


BOD5 mg/1 




1.7 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 303 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



205 



STORMWATER MANAGEMENT SUMMARY 
STONY BROOK BASIN 



TOWN LITTLETON 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1723 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


49.8 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


500 






SUSP. SOLIDS, LBS. 


5948 






BOD5 


874 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




34.1 


34.1 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




475 


475 


SUSP. SOLIDS, LBS. 




5353.2 


3866.2 


BOD5, LBS. 




742.9 


349.6 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




25 


25 


SUSP. SOLIDS, LBS. 




594.8 


2081.8 


BOD5, LBS. 




131.1 


524.4 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.2 


1.2 


SUSP. SOLIDS mg/1 




14.3 


— 


BOD5 mg/1 




2.1 


— 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.4 


5.0 


BOD5 mg/1 




0.3 


1.3 



TOTAL CAPITAL COST ($) 875,000 2,250,000 

ANNUAL O&M COST ($) 25,000 80,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


6822 


6822 


REMOVED, LBS. 




6096.1 


4215.8 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 9,800 36,400 



TREATMENT COST (C/1000 gals) 



11.2 30.8 



STORMWATER MANAGEMENT SUMMARY 
STONY BROOK BASIN 



TOWN 



WESTFORD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2898 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


96.6 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1204 






SUSP. SOLIDS, LBS. 


14202 






BOD 5 


2087 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




66.2 


66.2 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1143.8 


1143.8 


SUSP. SOLIDS, LBS. 




12781.8 


9231.3 


BOD5, LBS. 




1774 


834.8 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




60.2 


60.2 


SUSP. SOLIDS, LBS. 




1420.2 


4970.7 


BOD5, LBS. 




313 


1252.2 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.5 


1.5 


SUSP. SOLIDS mg/1 




17.6 


17.6 


BOD5 mg/1 




2.6 


2.6 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.07 


0.07 


SUSP. SOLIDS mg/1 




1.8 


6.2 


BOD5 mg/1 




0.4 


1.6 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 



2,000,000 4,250,000 
75,000 235,000 



SUSP. SOLIDS r BOD5 








BEFORE TREATMENT, 


LBS. 


16289 


16289 


REMOVED, LBS. 




14555.8 


10066.1 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/ % REMOVAL ($) 



22,400 



68,800 



TREATMENT COST (C/1000 gals) 



8.8 



27.2 



207 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN ASHLAND 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 2183 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 77.2 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 1211 

SUSP. SOLIDS, LBS. 24377 

BOD 5 2114 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . f MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 , LBS . 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 1,245,000 2,925,000 

ANNUAL O&M COST ($) 39,000 125,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 16491 164 91 

REMOVED, LBS. 14736.2 10190.6 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 13,900 47,300 

TREATMENT COST (C/1000 gala) 9.7 25.8 



SP 


SMD 


52.9 


52.9 


68.5 


68.5 


1150.5 


1150.5 


12939.3 


9345 


1796.9 


845.6 


60.5 


60.5 


1437.7 


5032 


317.1 


1268.4 


1.9 


1.9 


22.3 


22.3 


3.3 


3.3 


0.09 


0.09 


2.2 


7.8 


0.5 


2.0 



208 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN CONCORD 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


1270 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


39.0 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


580 






SUSP. SOLIDS, LBS. 


6940 






BOD5 


1021 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




26.8 


26.8 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




551 


551 


SUSP. SOLIDS, LBS. 




6246 


4511 


BOD5, LBS. 




867.8 


408.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




29 


29 


SUSP. SOLIDS, LBS. 




694 


2429 


BOD5, LBS. 




153.2 


612.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.8 


1.8 


SUSP. SOLIDS mg/1 




21.3 


21.3 


BOD5 mg/1 




3.1 


3.1 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.1 


7.5 


BOD5 mg/1 




0.5 


1.9 



TOTAL CAPITAL COST ($) 1,050,000 2,500,000 

ANNUAL O&M COST ($) 30,000 120,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 7961 7961 

REMOVED, LBS. 7113.8 4 919.4 

% REMOVED 89.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 11,800 40,500 

TREATMENT COST (C/1000 gals) 10.4 27.8 



ST0RMV7ATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



209 



TOWN FRAMINGHAM 




URBAN DRAINAGE AREA 




YEAR 


2000 


ACRES 


9824 


TOTAL STORM RUNOFF VOL. 




MIL. GAL. 


328.1 


TOTAL STORMWATER POLLUTANTS 




SETT. SOLIDS, LBS. 


6925 


SUSP. SOLIDS, LBS. 


82563 


BOD 5 


12142 


STORMWATER TREATMENT 




TREAT. DESCRIP. 




VOLUME TREAT . , MG 




% TREATED 




POLLUTANT REMOVALS 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




AVG. POLLUTANT CONCENTRATIONS 


1 


BEFORE TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 




AFTER TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 





TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



SP 

225.0 
68.6 



6578 
74306 
10320 

346 
8256 



1821.3 



2.5 

30.2 

4.4 



SMD 
225.0 
68.6 

6578.8 

53666 

4856.8 

346.2 

28897 

7285.2 



2 

30 

4 



10 

2 



MD 

225.0 
68.6 

6232.5 

37153.4 

2428.4 

692.5 

45409.6 

9713.6 



2.5 



30 
4 



16 

3 



4,100,000 7,100,000 33,000,000 
165,000 520,000 1,650,000 



94705 

84627.4 

89.4 



94705 

58522.8 

61.8 



45,900 115,000 



94705 

39581.8 

41.8 

790,000 



TREATMENT COST (C/1000 gals) 



8.2 



18.8 



72.5 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



210 



TOWN 



HOPKINTON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



2000 
2368 

72.1 

1032 

12226 

1798 



SP 


SMD 


49.4 


49.4 


68.5 


68.5 


980.4 


980.4 


11003.4 


7946.9 


1528.3 


719.2 


51.6 


51.6 


1222.6 


4279.1 



269.7 



1078.8 



1.7 


1.7 


20.3 


20.3 


3.0 


3.0 


0.09 


0.09 


2.0 


7.1 


0.4 


1.8 



1,200,000 2,800,000 
38,000 115,000 



14,024 

12531.7 

89.4 

13,400 



14,024 

8666.1 

61.8 

45,300 



TREATMENT COST (C/1000 gals) 



10.0 



26.3 



211 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN HUDSON 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


16 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.5 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


5 




SUSP. SOLIDS, LBS. 


56 




BOD 5 


8 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




5 


SUSP. SOLIDS, LBS. 




56 


BOD5, LBS. 




8 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




13.4 


BOD5 mg/1 




1.9 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




13.4 


BOD5 mg/1 




1.9 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



64 



212 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN LINCOLN 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 441 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. l 1 - 1 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 76 

SUSP. SOLIDS, LBS. 91 "7 

BOD 5 135 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/100 gals) 



NT 


SP 




7 


.6 


- 


68 


.5 


— 


72 


.2 


- 


825 


.3 


- 


114 


.7 


76 


3 


.8 


917 


91 


.7 


135 


20 


.3 


0.8 


0, 


.8 


9.9 


9 


.9 


1.5 


1, 


.5 


0.8 


0.04 


9.9 


1. 





1.5 


0, 


.2 


— 


260,000 


- 


5,000 


052 


1052 


- 


940 


- 


89. 


.4 


- 


2,900 


_ 


15. 






213 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN MARLBOROUGH 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 3102 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 102.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 2211 

SUSP. SOLIDS, LBS. 26388 

BOD 5 3881 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 1,525,000 3,450,000 

ANNUAL O&M COST ($) 52,000 165,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 30269 30269 

REMOVED, LBS. 27048.1 18704.6 

% REMOVED 8 9.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 17,100 55,800 

TREATMENT COST (C/1000 gals) 9.3 24.0 



SP 


SMD 


70.5 


70.5 


68.6 


68.6 


2100.5 


2100.5 


23749.2 


17152.2 


3298.9 


1552.4 


110.5 


110.5 


2638.8 


9235.8 


582.1 


2328.6 


2.6 


2.6 


30.8 


30.8 


4.5 


4.5 


0.1 


0.1 


3.1 


10.8 


0.7 


2.7 



214 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN NATICK 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


3199 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


108.8 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1641 






SUSP. SOLIDS, LBS. 


19489 






BOD 5 


2866 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




74.7 


74.7 


% TREATED 




68.7 


68.7 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1559 


1559 


SUSP. SOLIDS, LBS. 




17540.1 


12667.8 


BOD5, LBS. 




2436.1 


1146.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




82 


82 


SUSP. SOLIDS, LBS. 




1948.9 


6821.2 


BOD5, LBS. 




429.9 


1719.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.8 


1.8 


SUSP. SOLIDS mg/1 




21.5 


21.5 


BOD5 mg/1 




3.2 


3.2 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.2 


7.5 


BOD5 mg/1 




0.5 


1.9 



TOTAL CAPITAL COST ($) 1,600,000 3,500,000 

ANNUAL O&M COST ($) 55,000 175,000 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 



22355 22355 



REMOVED, LBS. 19976.2 13814.2 

% REMOVED 8 9.4 61.8 

CAPITAL COSTS/% REMOVAL ($) 17,900 56,600 



TREATMENT COST (C/1000 gals) 



9.1 23.6 



215 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN NORTHBOROUGH 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


70 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


2.4 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


36 




SUSP. SOLIDS, LBS. 






BOD5 


64 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




36 


SUSP. SOLIDS, LBS. 




435 


BOD5, LBS. 




64 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.8 


SUSP. SOLIDS mg/1 




21.7 


BOD5 mg/1 




3.2 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.8 


SUSP. SOLIDS mg/1 




21.7 


BOD5 mg/1 




3.2 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 4 " 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BIASIN 



216 



TOWN 



SHERBORN 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
360 

10.1 

82 
981 
144 



NT 


SP 


- 


6.9 


- 


68.3 


_ 


77.9 


- 


882.9 


- 


122.4 


82 


4.1 


981 


98.1 


144 


21.6 


1.0 


1.0 


11.6 


11.6 


1.7 


1.7 


1.0 


0.05 


11.6 


1.2 


1.7 


0.3 


_ 


275,000 


— 


6,000 


1125 


1125 


- 


1005.3 


- 


89.4 



3,100 



TREATMENT COST (C/1000 gals) 



15.2 



217 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN SOUTHBOROUGH 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


2512 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


83.2 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1554 






SUSP. SOLIDS, LBS. 


18531 






BOD 5 


2726 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




57.1 


57.1 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1476.3 


1476.3 


SUSP. SOLIDS, LBS. 




16677.9 


12045.1 


BOD5, LBS. . 




2317.1 


1090.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




77.7 


77.7 


SUSP. SOLIDS, LBS. 




1853.1 


6485.9 


BOD5, LBS. 




408.9 


1635.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




2.2 


2.2 


SUSP. SOLIDS mg/1 




26.7 


26.7 


BOD5 mg/1 




3.9 


3.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.1 


0.1 


SUSP. SOLIDS mg/1 




2.7 


9.3 


BOD5 mg/1 




0.6 


2.4 



TOTAL CAPITAL COST ($) 1,200,000 3,050,000 

ANNUAL O&M COST ($) 43,000 135,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 21257 21257 

REMOVED, LBS. 18995 13135.5 

% REMOVED 89 - 4 61.8 

CAPITAL COSTS/% REMOVAL ($) 13,400 49,400 

TREATMENT COST (C/1000 gals) 9 - 8 25 - 3 



218 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN SUDBURY 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


6742 






TOTAL STORM RUNOFF VOL. 






- 


MIL. GAL. 


192.3 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1779 






SUSP. SOLIDS, LBS. 


21253 






BOD 5 


3125 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




131.9 


131.9 


% TREATED 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1690 


1690 


SUSP. SOLIDS, LBS. 




19127.7 


13814.5 


BOD5, LBS. 




2656.2 


1250 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




89 


89 


SUSP. SOLIDS, LBS. 




2125.3 


7438.5 


BOD5, LBS. 




468.8 


1875 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.1 


1.1 


SUSP. SOLIDS mg/1 




13.3 


13.3 


BOD5 mg/1 




1.9 


1.9 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.06 


0.06 


SUSP. SOLIDS mg/1 




1.3 


4.6 


BOD5 mg/1 




0.3 


1.2 



TOTAL CAPITAL COST ($) 2,550,000 5,000,000 

ANNUAL O&M COST ($) 98,000 310,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 24378 24378 

REMOVED, LBS. 21783.9 15064.5 

% REMOVED 89 * 4 61 * 8 

CAPITAL COSTS/% REMOVAL ($) 28,500 80,900 



TREATMENT COST (C/1000 gala) 



8.5 20.8 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



219 



TOWN 



WAYLAND 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


5830 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


161.9 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


1382 






SUSP. SOLIDS, LBS. 


16532 






BOD 5 


2431 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




111.0 


111.0 


% TREATED , 




68.6 


68.6 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1312.9 


1312.9 


SUSP. SOLIDS, LBS. 




14878.8 


10745.8 


BOD5, LBS. 




2066.4 


972.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




69.1 


69.1 


SUSP. SOLIDS, LBS. 




1653.2 


5786.2 


BOD5, LBS. 




364.6 


1458.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.0 


1.0 


SUSP. SOLIDS mg/1 




12.2 


12.2 


BOD5 mg/1 




1.8 


1.8 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.05 


0.05 


SUSP. SOLIDS mg/1 




1.2 


4.3 


BOD5 mg/1 




0.3 


1.8 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2,200,000 4,500,000 
82,000 265,000 



18963 

16945.2 

89.4 

24,600 



18963 

11718.2 

61.8 

72,800 



TREATMENT COST (C/1000 gals) 



8.7 



21.6 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



^zu 



TOWN WESTBOROUGH 




URBAN DRAINAGE AREA 




YEAR 


2000 


ACRES 


3324 


TOTAL STORM RUNOFF VOL. 




MIL. GAL. 


119.6 


TOTAL STORMWATER POLLUTANTS 




SETT. SOLIDS, LBS. 


1950 


SUSP. SOLIDS, LBS. 


23083 


BOD5 


3394 


STORMWATER TREATMENT 




TREAT. DESCRIP. 




VOLUME TREAT . , MG 




% TREATED 




POLLUTANT REMOVALS 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 




AFTER TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 





TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



SP 


SMD 


81.9 


81.9 


68.5 


68.5 


1852.5 


1852.5 


20774.7 


15004 


2884.9 


1357.6 


97.5 


97.5 


2308.3 


8079 


509.1 


2036.4 


2.0 


2.0 


23.1 


23.1 


3.4 


3.4 


0.1 


0.1 


2.3 


8.1 


0.5 


2.0 



1,740,000 3,750,000 
62,000 195,000 



26477 

23659.6 

89.4 

19,500 



26477 

16361.6 

61.8 

60,700 



TREATMENT COST (C/1000 gals 



9.0 



23.2 



221 



STORMWATER MANAGEMENT SUMMARY 
SUDBURY RIVER BASIN 



TOWN WESTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 334 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 8.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 8 

SUSP. SOLIDS, LBS. 955 

BOD 5 141 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



NT 


SP 


- 


6.0 


— 


68.2 


— 


76 


- 


859.5 


— 


119.8 


80 


4 


955 


95.5 


141 


21.2 


1.1 


1.1 


13.0 


13.0 


1.9 


1.9 


1.1 


0.05 


13.0 


1.3 


1.9 


0.3 


_ 


240,000 


~* 


4,000 


1096 


1096 


- 


979.3 


- 


89.4 


- 


2,700 




15.5 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



222 



TOWN 



AVON 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



2000 
2240 

35.7 

502 

5968 

878 



SP 


SMD 


24.5 


24.5 


68.6 


68.6 


476.9 


476.9 


5371.2 


3879.2 


746.3 


351.2 


25.1 


25.1 


596.8 


2088.8 


131.7 


526.8 


1.7 


1.7 


20.0 


20.0 


2.9 


2.9 


0.08 


0.08 


2.0 


7.0 


0.4 


1.8 


700,000 


2,000,000 


18,000 


60,000 


6846 


6846 


6117.5 


4230.4 


89.4 


61.8 


7,800 


32,400 


11.8 


33.5 



223 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



TOWN HOLBROOK 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 234 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 7.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 102 

SUSP. SOLIDS, LBS. 1201 

BOD 5 177 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) - 2200 

TREATMENT COST (C/1000 gals) - I 6 - 



NT 


SP 


- 


5.4 


— 


68.4 


— 


96.9 


- 


1,080.9 


— 


150.5 


102 


5.1 


1201 


120.1 


177 


26.5 


1.5 


1.5 


18.2 


18*. 2 


2.7 


2.7 


1.5 


0.08 


18.2 


1.8 


2.7 


0.4 


- 


200,000 


— 


5,000 


1378 


1378 


- 


1231.4 


89.4 


89.4 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



224 



TOWN 



PEMBROKE 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 244 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 6.4 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 47 

SUSP. SOLIDS, LBS. 569 

BOD 5 84 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



NT 


SP 


- 


4.4 


— 


68.8 


- 


44.7 


- 


512.1 


— 


71.4 


47 


2.3 


569 


56.9 


84 


12.6 


0.9 


0.9 


10.7 


10.7 


1.6 


1.6 


0.9 


0.04 


10.7 


1.1 


1.6 


0.2 


— 


200,000 


■■ 


5,000 


653 


653 


- 


583.5 


- 


89.4 



2200 



TREATMENT COST (C/1000 gals) 



16.0 



225 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



TOWN ROCKLAND 






URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


40 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


0.9 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


7 




SUSP. SOLIDS, LBS. 


86 




BOD5 


13 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




N 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




7 


SUSP. SOLIDS, LBS. 




86 


BOD5, LBS. 




13 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




0.9 


SUSP. SOLIDS mg/1 




11.5 


BOD5 mg/1 




1.7 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




0.9 


SUSP. SOLIDS mg/1 




11.5 


BOD5 mg/1 




1.7 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. " 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



TOWN 



SHARON 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 700 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 20.9 

TOTAL STORMWATER POLLUTANTS 



SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



230 

2717 

399 



SP 


SMD 


14.3 


14.3 


68.4 


68.4 


218.5 


218.5 


2445.3 


1766 


339.2 


159.6 


11.5 


11.5 


271.7 


951 


59.8 


239.4 


1.3 


1.3 


15.6 


15.6 


2.3 


2.3 


0.07 


0.07 


1.6 


5.5 


0.3 


1.4 


490,000 


1,500,000 


10,000 


35,000 


3,116 


3,116 


2784.5 


1925.6 


89.4 


61.8 


5500 


24,300 


13.5 


43.0 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



227 



TOWN 



STOUGHTON 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 820 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 30.1 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 545 

SUSP. SOLIDS, LBS. 6458 

BOD 5 949 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



SP 


SMD 


20.7 


20.7 


68.8 


68.8 


517.8 


517.8 


5812.2 


4197.7 


806.6 


379.6 


27.2 


27.2 


645.8 


2260.3 


142.4 


569.4 


2.2 


2.2 


25.7 


25.7 


3.8 


3.8 


0.1 


0.1 


2.6 


9.0 


0.6 


2.3 


625,000 


1,800,000 


15,000 


50,000 


7407 


7407 


6118.8 


4577.3 


89.4 


61.8 


7,000 


29,100 


12.5 


38.0 



STORMWATER MANAGEMENT SUMMARY 
TAUNTON RIVER BASIN 



228 



TOWN 



WRENTHAM 



URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 1055 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 31.7 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 4 54 

SUSP. SOLIDS, LBS. 5412 

BOD 5 796 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



TREATMENT COST (C/1000 gals) 



SP 


SMD 


21.7 


21.7 


68.4 


68.4 


431.3 


431.3 


4870.8 


3517.8 


676.6 


318.4 


22.7 


22.7 


541.2 


1894.2 


119.4 


477.6 


1.7 


1.7 


20.5 


20.5 


3.0 


3.0 


0.09 


0.09 


2.0 


7.2 


0.5 


1.8 


650,000 


1,850,000 


16,000 


55,000 


6208 


6208 


5547.4 


3836.2 


89.4 


61.8 


7,300 


29,900 


12.1 


35.9 



229 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH BACK RIVER 



TOWN ABINGTON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 95 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 2.3 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 17 

SUSP. SOLIDS, LBS. 205 

BOD 5 30 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT 

VOLUME TREAT . , MG 
% TREATED 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 
SUSP. SOLIDS, LBS. 
BOD5, LBS. 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 17 

SUSP. SOLIDS, LBS. 205 

BOD5, LBS. 30 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 0.9 

SUSP. SOLIDS mg/1 10.7 

BOD5 mg/1 1.6 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.9 

SUSP. SOLIDS mg/1 10.7 

BOD5 mg/1 1.6 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 2 35 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



230 



STORMWATER MANAGEMENT SUMMARY 
WEYMQUTH BACK RIVER 



TOWN BRAINTREE 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


48 




TOTAL STORM RUNOFF VOL. 






MIL, GAL. 


1.2 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


12 




SUSP. SOLIDS, LBS. 


141 




BOD5 


21 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




12 


SUSP. SOLIDS, LBS. 




141 


BOD5, LBS. 




21 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




14.1 


BOD5 mg/1 




2.1 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




14.1 


BOD5 mg/1 




2.1 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 162 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



231 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH BACK RIVER 



TOWN H INGHAM 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 154 9 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 48.8 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 916 

SUSP. SOLIDS, LBS. 10875 
BOD 5 1600 

STORMWATER TREATMENT 

TREAT. DESCRIP. SP SMD 

VOLUME TREAT . , MG 34.4 34.4 

% TREATED 68.7 68.7 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 9787.5 7068.7 

BOD5, LBS. 1360 640 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 45.8 45.8 

SUSP. SOLIDS, LBS. 1087.5 3806.3 

BOD5, LBS. 240 960 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 2.3 2.3 

SUSP. SOLIDS mg/1 26.7 26.7 

BOD5 mg/1 3.9 3.9 

AFTER TREATMENT 

SETT. SOLIDS mg/1 0.1 0.1 

SUSP. SOLIDS mg/1 2.7 9.4 

BOD5 mg/1 0.6 2.4 

TOTAL CAPITAL COST ($) 875,000 2,250,000 

ANNUAL O&M COST ($) 25,000 80,000 



SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, 


LBS. 


12475 


12475 


REMOVED, LBS. 




11147.5 


7708.7 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 9,800 36,400 

TREATMENT COST (C/1000 gals) 11.2 30.8 



232 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH BACK RIVER 



TOWN HOLBROOK 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


64 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.9 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


17 




SUSP. SOLIDS, LBS. 


203 




BOD 5 


30 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- - 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




17 


SUSP. SOLIDS, LBS. 




203 


BOD5, LBS. 




30 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.1 


SUSP. SOLIDS mg/1 




13.5 


BOD5 mg/1 




2.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.1 


SUSP. SOLIDS mg/1 




13.5 


BOD5 mg/1 




2.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 233 

REMOVED , LBS . 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



233 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH BACK RIVER 



TOWN ROCKLAND 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 459 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 15.9 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 191 

SUSP. SOLIDS, LBS. 2240 

BOD5 329 

STORMWATER TREATMENT 

TREAT. DESCRIP. NT SP 

VOLUME TREAT., MG - 10.9 

% TREATED - 68.6 

POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. - 181.5 

SUSP. SOLIDS, LBS. - 2016 

BOD5, LBS. - 279.6 

POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 191 9.5 

SUSP. SOLIDS, LBS. 2240 224 

BOD5, LBS. 329 49.4 

AVG. POLLUTANT CONCENTRATIONS 
BEFORE TREATMENT 

SETT. SOLIDS mg/1 1.4 1.4 

SUSP. SOLIDS mg/1 16.9 16.9 

BOD5 mg/1 2.5 2.5 

AFTER TREATMENT 

SETT. SOLIDS mg/1 1-4 0.07 

SUSP. SOLIDS mg/1 16.9 1.7 

BOD5 mg/1 2.5 0.4 

TOTAL CAPITAL COST ($) - 3 7 5,000 

ANNUAL O&M COST ($) " 9,0 00 



SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 



2569 2569 



REMOVED, LBS. " 22 95.6 

% REMOVED " 89 -4 

CAPITAL COSTS/ % REMOVAL ($) " 42 00 

TREATMENT COST (C/1000 gals) " 14-0 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH BACK RIVER 



234 



TOWN 



WEYMOUTH 



URBAN DRAINAGE AREA 








YEAR 


2000 






ACRES 


4485 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


146.8 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


2071 






SUSP. SOLIDS, LBS. 


24599 






BOD 5 


3616 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




100.6 


100.6 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




1967.5 


1863.9 


SUSP. SOLIDS, LBS. 




22139.1 


15989.4 


BOD5, LBS. 




3073.6 


1446.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




103.5 


207.1 


SUSP. SOLIDS, LBS. 




2459.9 


8906.6 


BOD5, LBS. 




542.4 


2169.6 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.7 


1.7 


SUSP. SOLIDS mg/1 




20.1 


20.1 


BOD5 mg/1 




3.0 


3.0 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.08 


0.2 


SUSP. SOLIDS mg/1 




2.0 


7.0 


BOD5 mg/1 




0.4 


1.8 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2,000,000 4.250,000 
75,000 235,000 



28215 

25212.7 

89.4 

22,400 



28215 

17435.8 

61.8 

68,800 



TREATMENT COST (C/1000 gals) 



8.8 



22.1 



235 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



TOWN AVON 

URBAN DRAINAGE AREA 

YEAR 2000 

ACRES 169 

TOTAL STORM RUNOFF VOL. 

MIL. GAL. 5.1 

TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 61 

SUSP. SOLIDS, LBS. 725 

BOD 5 107 

STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/ % REMOVAL ($) " 2,100 

TREATMENT COST (C/1000 gals) " 20 - 4 



NT 


SP 


- 


3.5 


— 


68.6 


- 


58 


- 


652.5 


— 


91 


61 


3 


725 


72.5 


107 


16 


1.4 


1.4 


17.0 


17.0 


2.5 


2.5 


1.4 


0.07 


17.0 


1.7 


2.5 


0.4 


- 


190,000 


— 


4,000 


832 


832 


- 


743.5 


- 


89.4 



236 
STORMWATER MANAGEMENT SUMMARY 

WEYMOUTH FORE RIVER BASIN 



TOWN BRAINTREE 










URBAN DRAINAGE AREA 










YEAR 


2000 








ACRES 


5177 








TOTAL STORM RUNOFF VOL. 










MIL. GAL. 


183.2 








TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


3756 








SUSP. SOLIDS, LBS. 


44609 








BOD5 


6559 








STORMWATER TREATMENT 










TREAT. DESCRIP. 




SP 


SMD 


MD 


VOLUME TREAT . , MG 




125.6 


125.6 


125.6 


% TREATED 




68.6 


68.6 


68.6 


POLLUTANT REMOVALS 










SETT. SOLIDS, LBS. 




3568.2 


3568.2 


3380*4 


SUSP. SOLIDS, LBS. 




40148.1 


28995.8 


20074 


BOD5, LBS. 




5575.2 


2623.6 


1311.8 


POLLUTANTS DISCHARGED 










SETT. SOLIDS, LBS. 




187.8 


187.8 


375.6 


SUSP. SOLIDS, LBS. 




4460.9 


15613.2 


24535 


BOD5, LBS. 




983.8 


3935.4 


5247.2 


AVG. POLLUTANT CONCENTRATIONS 








BEFORE TREATMENT 










SETT. SOLIDS mg/1 




2.5 


2.5 


2.5 


SUSP. SOLIDS mg/1 




29.2 


29.2 


29.2 


BOD5 mg/1 




4.3 


4.3 


4.3 


AFTER TREATMENT 










SETT. SOLIDS mg/1 




0.1 


0.1 


0.2 


SUSP. SOLIDS mg/1 




2.9 


10.2 


16.1 


BOD5 mg/1 




0.6 


2.6 


3.4 



TOTAL CAPITAL COST ($) 2,400,000 4,850,000 18,500,000 

ANNUAL O&M COST ($) 93,000 290,000 925,000 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 51168 51168 51168 

REMOVED, LBS. 45723.3 31619.4 21,385.8 

% REMOVED 89 - 4 61.8 41.8 

CAPITAL COSTS/% REMOVAL ($) 26,800 78,500 443,-000 



TREATMENT COST (C/1000 gals) 



8.5 21.0 73.0 



237 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



TOWN BROCKTON 






URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


44 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.0 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


10 




SUSP. SOLIDS, LBS. 


119 




BOD 5 


17 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




- 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




10 


SUSP. SOLIDS, LBS. 




119 


BOD5, LBS. 




17 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.2 


SUSP. SOLIDS mg/1 




14.3 


BOD5 mg/1 




2.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.2 


• SUSP. SOLIDS mg/1 




14.3 


BOD5 mg/1 




2.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 136 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



238 
STORMWATER MANAGEMENT SUMMARY 

WEYMOUTH FORE RIVER BASIN 



TOWN CANTON 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


108 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


2.8 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


39 




SUSP. SOLIDS, LBS. 


467 




BOD5 


69 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




— 


% TREATED 




— 


POLLUTANT REMOVALS' 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




39 


SUSP. SOLIDS, LBS. 




467 


BOD5 , LBS . 




69 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.7 


SUSP. SOLIDS mg/1 




20.0 


BOD5 mg/1 




3.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.7 


SUSP. SOLIDS mg/1 




200 


BOD5 mg/1 




3.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 536 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



239 



TOWN 



HOLBROOK 



URBAN DRAINAGE AREA 








YEAR 


200 J 






ACRES 


1723 






TOTAL STORM RUNOFF VOL. 








MIL. GAL. 


60.9 






TOTAL STORMWATER POLLUTANTS 








SETT. SOLIDS, LBS. 


947 






SUSP. SOLIDS, LBS. 


11230 






BOD5 


1651 






STORMWATER TREATMENT 








TREAT. DESCRIP. 




SP 


SMD 


VOLUME TREAT . , MG 




41.7 


41.7 


% TREATED 




68.5 


68.5 


POLLUTANT REMOVALS 








SETT. SOLIDS, LBS. 




899.6 


899.6 


SUSP. SOLIDS, LBS. 




10107 


7299.5 


BOD5 , LBS . 




1403.4 


660.4 


POLLUTANTS DISCHARGED 








SETT. SOLIDS, LBS. 




47.4 


47.4 


SUSP. SOLIDS, LBS. 




1123 


3930.5 


BOD5 , LBS . 




247.6 


990.6 


AVG. POLLUTANT CONCENTRATIONS 






BEFORE TREATMENT 








SETT. SOLIDS mg/1 




1.9 


1.9 


SUSP. SOLIDS mg/1 




22.1 


22.1 


BOD5 mg/1 




3.3 


3.3 


AFTER TREATMENT 








SETT. SOLIDS mg/1 




0.09 


0.09 


SUSP. SOLIDS mg/1 




2.2 


7.7 


BOD5 mg/1 




0.5 


2.0 


TOTAL CAPITAL COST ($) 




1,040,000 


2,525,000 


ANNUAL O&M COST ($) 




31,000 


100,000 


SUSP. SOLIDS + BOD5 








BEFORE TREATMENT, LBS. 




12881 


12881 


REMOVED, LBS. 




11510.4 


7959.9 


% REMOVED 




89.4 


61.8 



CAPITAL COSTS/% REMOVAL ($) 



11,600 



40,900 



TREATMENT COST (C/1000 gals) 



10.3 



27.5 



240 
STORMWATER MANAGEMENT SUMMARY 

WEYMOUTH FORE RIVER BASIN 



TOWN MILTON 



URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


112 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


3.0 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


57 




SUSP. SOLIDS, LBS. 


678 




BOD 5 


100 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




•" 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




— 


SUSP. SOLIDS, LBS. 




— 


BOD5, LBS. 




— 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




57 


SUSP. SOLIDS, LBS. 




678 


BOD5, LBS. 




100 


AVG. POLLUTANT CONCENTRATIONS 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




2.3 


SUSP. SOLIDS mg/1 




27.1 


BOD5 mg/1 




4.0 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




2.3 


SUSP. SOLIDS mg/1 




27.1 


BOD5 mg/1 




4.0 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 778 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



241 



TOWN 



QUINCY 



URBAN DRAINAGE AREA 

YEAR 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 
TOTAL STORMWATER POLLUTANTS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



2000 
2920 

113.8 

2168 

25600 

3763 



SP 
78.0 
68.5 

2059.6 

23040 

3198.5 

108.4 

2560 

564.5 



2 
27 

4 


2 




1,650,000 
58,000 



29363 

26238.5 

89.4 

18,500 



SMD 

78.0 

68.5 

2059.6 

16640 

1505.2 

108.4 

8960 

2257.8 



2.3 

27.0 

4.0 

0.1 
9.4 
2.4 



MD 

78.0 

68.5 

1951.2 
11520 
752.6 

216.8 

14080 

3010.4 



2.3 

27.0 

4.0 

0.2 

14.8 

3.2 



3,625,00011,500,000 
185,000 575,000 



29363 

18145.2 

61.8 



29363 

12272.6 

41.8 



58,700 275,000 



TREATMENT COST (C/1000 gals) 



9.1 



23.5 



73.9 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



242 



TOWN 



RANDOLPH 



2000 
3845 



URBAN DRAINAGE AREA 

YEAR ^ 

ACRES 
TOTAL STORM RUNOFF VOL. 

MIL. GAL. 121.1 

TOTAL STORMWATER POLLUTANTS 

1711 



SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD 5 
STORMWATER TREATMENT 

TREAT. DESCRIP. 

VOLUME TREAT . , MG 

% TREATED 
POLLUTANT REMOVALS 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
POLLUTANTS DISCHARGED 

SETT. SOLIDS, LBS. 

SUSP. SOLIDS, LBS. 

BOD5, LBS. 
AVG. POLLUTANT CONCENTRATIONS 

BEFORE TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

AFTER TREATMENT 

SETT. SOLIDS mg/1 

SUSP. SOLIDS mg/1 

BOD5 mg/1 

TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 



20385 
2997 



SP 


SMD 


83.0 


83.0 


68.5 


68.5 


1625.5 


1625.5 


8346.5 


13250.2 


2547.5 


1198.8 


85.5 


85.5 


2038.5 


7134.8 


449.5 


1798.2 



1.7 



20 
3 


2 




2 



08 



4 



1.7 



20 
3 


7 

1 



2 



08 

1 

8 



1,745,000 
62,000 



23382 

20894 

89.4 

19,500 



3,750,000 
193,000 



23382 

14449 

61.8 

60,700 



TREATMENT COST (C/1000 gals) 



9.0 



23.2 



243 
STORMWATER MANAGEMENT SUMMARY 

WEYMOUTH FORE RIVER BASIN 



TOWN STOUGHTON 






URBAN DRAINAGE AREA 






YEAR 


2000 




ACRES 


80 




TOTAL STORM RUNOFF VOL. 






MIL. GAL. 


1.6 




TOTAL STORMWATER POLLUTANTS 






SETT. SOLIDS, LBS. 


24 




SUSP. SOLIDS, LBS. 


290 




BOD 5 


43 




STORMWATER TREATMENT 






TREAT. DESCRIP. 




NT 


VOLUME TREAT . , MG 




- 


% TREATED 




— 


POLLUTANT REMOVALS 






SETT. SOLIDS, LBS. 




- 


SUSP. SOLIDS, LBS. 




- 


BOD5, LBS. 




- 


POLLUTANTS DISCHARGED 






SETT. SOLIDS, LBS. 




24 


SUSP. SOLIDS, LBS. 




290 


BOD5, LBS. 




43 


AVG. POLLUTANT CONCENTRATION! 




BEFORE TREATMENT 






SETT. SOLIDS mg/1 




1.8 


SUSP. SOLIDS mg/1 




21.7 


BOD5 mg/1 




3.2 


AFTER TREATMENT 






SETT. SOLIDS mg/1 




1.8 


SUSP. SOLIDS mg/1 




21.7 


BOD5 mg/1 




3.2 



TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 333 

REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($) 
TREATMENT COST (C/1000 gals) 



STORMWATER MANAGEMENT SUMMARY 
WEYMOUTH FORE RIVER BASIN 



244 



TOWN WEYMOUTH 




URBAN DRAINAGE AREA 




YEAR 


2000 


ACRES 


1489 


TOTAL STORM RUNOFF VOL. 




MIL. GAL. 


49.8 


TOTAL STORMWATER POLLUTANTS 




SETT. SOLIDS, LBS. 


754 


SUSP. SOLIDS, LBS. 


8989 


BOD5 


1322 


STORMWATER TREATMENT 




TREAT. DESCRIP. 




VOLUME TREAT . , MG 




% TREATED 




POLLUTANT REMOVALS 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5, LBS. 




POLLUTANTS DISCHARGED 




SETT. SOLIDS, LBS. 




SUSP. SOLIDS, LBS. 




BOD5 , LBS . 




AVG. POLLUTANT CONCENTRATIONS 


BEFORE TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 




AFTER TREATMENT 




SETT. SOLIDS mg/1 




SUSP. SOLIDS mg/1 




BOD5 mg/1 





TOTAL CAPITAL COST ($) 
ANNUAL O&M COST ($) 

SUSP. SOLIDS + BOD5 

BEFORE TREATMENT, LBS. 
REMOVED, LBS. 
% REMOVED 

CAPITAL COSTS/% REMOVAL ($ 



SP 



SMD 



34.1 


34.1 


68.5 


68.5 


716.3 


716.3 


8090.1 


5842.8 


1123.7 


528.8 


37.7 


37.7 


898.9 


3146.2 


198.3 


793.4 


1.8 


1.8 


21.6 


21.6 


3.2 


3.2 


0.09 


0.09 


2.2 


7.6 


0.5 


1.9 


875,000 2, 


-250,000 


25,000 


80,000 


10311 


10311 


9213.8 


6371.6 


89.4 


61.8 



9,800 



36,900 



TREATMENT COST (C/1000 gals) 



11.2 



30.8